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ARVO 2015 Annual Meeting Abstracts 166 Vitreomacular interface disorders Sunday, May 03, 2015 3:15 PM–5:00 PM Exhibit Hall Poster Session Program #/Board # Range: 1198–1237/D0175–D0214 Organizing Section: Retina Contributing Section(s): Clinical/Epidemiologic Research, Multidisciplinary Ophthalmic Imaging, Physiology/Pharmacology Program Number: 1198 Poster Board Number: D0175 Presentation Time: 3:15 PM–5:00 PM Analysis of the vitreomacular interface in a French populationbased study (The MONTRACHET study: Maculopathy, Optic Nerve, nuTRition, neurovAsCular and HEarT diseases) Jacques Bouche-Pillon1, Philippe Koehrer1, Alain M. Bron1, Catherine P. Garcher1, Christine Binquet1, Christophe tzourio2, Lionel Bretillon3, Niyazi Acar3. 1CHU dijon, Dijon, France; 2Inserm U, Bordeaux, France; 3INRA Eye and Nutrition Research Group, Dijon, France. Purpose: The aim of this study was to investigate the prevalence and distribution of vitreomacular adhesion (VMA) in a French population aged over 75 years and enrolled in the MONTRACHET study. Methods: An earlier three-city study (3C; 1999) recruited and studied 9294 subjects aged 65 years or more drawn from three French cities (Bordeaux, Dijon and Montpellier). After a 10-year follow up, Dijon’s cohort had a complete ophthalmic examination as part of the MONTRACHET study. Vitreomacular interface (VMI) was analysed with a spectral-domain OCT. Vitreomacular adhesion (VMA) in each patient was classified according to the IVTS (International Vitreomacular Traction Study) criteria, defining the presence VMA, vitreomacular traction (VMT) isolated or associated with a foveal distorsion. Results: One thousand one hundred and fifty three subjects were included in the study; the median age was 81 [76-96] years. Prevalence of vitreomacular adhesion was 12.2%. VMA affected both eyes in 28.5% of cases (80 patients). The median size of the diameter of vitreous attachment to the macular surface was 1377 [50-5639] mm. Attachment was focal (≤1500 m) for 52.3% of cases (147 eyes) and broad (>1500 m) for 47.7% of cases (134 eyes). Prevalence of isolated VMT was 0.9% (22 eyes) and was focal (<1500 mm) in all cases. Prevalence of lamellar holes was 0.6% (13 eyes) and macular pseudoholes was 0.2% (4 eyes). Prevalence of full-thickness macular hole was 0.01% (2 eyes). ARMD (Age Related Macular Degeneration) was associated with VMA in 4 eyes (2.5 %). Conclusions: The analysis of VMI is interesting due to the emergence of enzymatic vitreolysis. These results provide new population data from French subjects aged 75 years and above. These results from the MONTRACHET study are the first to analyse and classify VMA using the new classification system of the International Vitreomacular Traction Study Group in a population based study. Commercial Relationships: Jacques Bouche-Pillon, None; Philippe Koehrer, None; Alain M. Bron, None; Catherine P. Garcher, None; Christine Binquet, None; Christophe tzourio, None; Lionel Bretillon, None; Niyazi Acar, None Program Number: 1199 Poster Board Number: D0176 Presentation Time: 3:15 PM–5:00 PM Spectral domain optical coherence tomography characteristics after acute posterior vitreous detachment Nadim Rayess, Ehsan Rahimy, Jason Hsu. Ophthalmology, Wills Eye Hospital, Philadelphia, PA. Purpose: To identify any anatomical retinal changes that develop after spontaneous acute posterior vitreous detachment (PVD) and compare it to previously reported findings following ocriplasmin induced release of vitreomacular traction. Methods: Prospective single center study of patients with signs and symptoms (flashers and floaters) of acute PVD less than 2 weeks duration, and confirmed by funduscopic examination. An enhanced vitreous imaging spectral-domain optical coherence tomography (SDOCT) protocol was implemented for patients who presented with the above symptoms. Patients received both a 6-line radial and a 7-line raster scan pattern using a scan width of 30° centered on the fovea. This imaging protocol was performed on both the symptomatic eye and the corresponding fellow eye. SD-OCT scans were then reviewed to detect any retinal changes, specifically in the external limiting membrane and ellipsoid zone. The findings were then compared to the fellow eye. Results: Forty eyes of 40 patients with a mean age of 59 ± 10 years were included in this study. The presence of PVD was confirmed by enhanced vitreous SD-OCT imaging in all cases. The ellipsoid zone and external limiting membrane were found to be intact in all 40 cases following spontaneous release of the vitreomacular interface. Similarly, no outer retinal changes were noted in the fellow eye. Nine of the 40 patients had a retinal tear detected on funduscopic examination. Seven of these 9 patients demonstrated hyperlucent dots within the region of detached vitreous. Conclusions: Spontaneous acute PVD does not seem to cause ellipsoid zone changes as is noted in patients that undergo release of vitreomacular traction using intravitreal ocriplasmin injections.This suggests that the mechanism of ellipsoid zone changes following ocriplasmin injection may be a result of the pharmacological action of the drug. Furthermore, the presence of hyperlucent dots in the region of detached vitreous in patients with acute PVD, may be a sensitive indicator for the presence of a retinal tear. Commercial Relationships: Nadim Rayess, None; Ehsan Rahimy, None; Jason Hsu, None Program Number: 1200 Poster Board Number: D0177 Presentation Time: 3:15 PM–5:00 PM Vitreoretinal Interface Enhanced High Density Spectral Domain Optical Coherence Tomography in Age-Related Macular Degeneration Daniela Santos1, 2, Sergio Groman-Lupa1, 2, Yu Cheol Kim1, 2, Mariana Harasawa1, 2, Guillermo Salcedo3, Miguel Paciuc1, 2, Hugo Quiroz-Mercado1, 2. 1Opthalmology, Denver Health Medical Center, Denver, CO; 2Opthalmology, University of Colorado, Denver, CO; 3 Opthalmology, Asociación para Evitar la Ceguera en México, Mexico City, Mexico. Purpose: Vitreoretinal interface findings have been reported in several pathologies using Swept Source OCT (SS OCT). Enhanced High Density Spectral Domain Optical Coherence Tomography (EHD- SDOCT) has not been widely studied in eyes affected by Age-Related Macular Degeneration (AMD). The purpose of this retrospective, observational study was to report structural findings of vitreoretinal interface using EHD-SDOCT in eyes with AMD. Methods: Optovue RTVue XR Avanti (Optovue Inc.) in Enhanced HD line mode was used in 22 patients (44 eyes) at Denver Health Medical Center with either dry or wet macular degeneration. The patients included were subjects with a previous diagnosis of AMD. The age ranged between 58 and 89 years with a mean age of 73 years. 9% of the patients were male. Results: The EHD- SDOCT findings included retinal pigment epithelium disruptions, choroidal neovascularization, retinal thinning, intraretinal edema, subretinal fluid and drusen in the subjects eyes. Other non AMD related findings included visualization of the Cloquet’s canal with or without a vitreous septum connecting to ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts the posterior precortical vitreous pocket and presence of epiretinal membrane. We found that 22 eyes (50%) had wet AMD while the other half had dry AMD. Posterior Vitreous Detachment (PVD) was not observed in any of our patients. Not evaluable premacular vitreous configuration was present in 10 eyes (22%). Of the evaluable eyes, Partial PVD was observed in 27 out of 34 eyes (79.41%). Conclusions: EHD-SDOCT demonstrated to be a useful tool when observing vitreoretinal interface in AMD patients. Complete PVD was absent in all of our cases. This is probably linked to the fact that EHD-SDOCT is associated with wide field imaging and a highquality visualization of vitreoretinal interface. Commercial Relationships: Daniela Santos, None; Sergio Groman-Lupa, None; Yu Cheol Kim, None; Mariana Harasawa, None; Guillermo Salcedo, None; Miguel Paciuc, None; Hugo Quiroz-Mercado, None Program Number: 1201 Poster Board Number: D0178 Presentation Time: 3:15 PM–5:00 PM Post market experience with Ocriplasmin correlating chronic changes in electrophysiology (ERG) and optical coherence tomography (OCT) Maribel La Fontaine, Fadi Shaya, Kent W. Small. Macula and Retina Institute, Glendale, CA. Purpose: Intravitreal injections of Ocriplasmin have recently been used to treat vitreo-macular traction (VMT). Some have reported associated transient dyschromatopsias and fewer have reported ERG abnormalities. We reviewed our experience with Ocriplasmin including ERG and OCT findings before and after the injection. Methods: A retrospective chart review was conducted of our first nine consecutive patients who were treated with intravitreal Ocriplasmin. Pre-injection and post injection data collected were visual acuity, funduscopy, fundus photographs, OCT and IVFA findings. Retinal function was evaluated using ISEV standardized full field ERG testing and when appropriate, visual evoked potential (VEP). IRB approval was obtained. Results: Three of the nine patients had successful release of the vitreo-macular traction but only two of these three patients achieved closure of the macular hole with visual acuity improvement (20/400 to 20/30; 20/80 to 20/30). Patient 1 had moderate rod and cone function loss and patient 2 had severe loss of rod function by ERG. Patient 3 experienced successful release of the vitreo-macular traction but the macular hole did not close. Patient 3 still experienced a significant loss in rod and cone function. These three also showed a disappearance of the ellipsoid layer. Changes in patient 1, 2 and 3 persisted for over 6 months with minimal recovery of cone and rod function. In patient 1, ERG recordings improved dramatically along with the reappearance of the ellipsoid layer on OCT but only after 15 months. However, her ERG has not returned to baseline. In patients 2 and 3, the ERG and ellipsoid layer recovered after 6 months. The six remaining patients experienced no change in visual acuity, ERG or OCT and all 6 had subsequent successful vitrectomy with hole closure and improvement in visual acuity. Conclusions: Ocriplasmin caused vitreo-macular traction release and significant ERG depression along with loss of ellipsoid layer in 3 of 9 patients; 2 of the 3 patients had successful macular hole closure with visual acuity improvement. The OCT ellipsoid layer loss paralleled the ERG depression. We found no ERG changes in the patients following vitrectomy and membrane peel with indocyanine green. This is one of the first reports of chronic ERG changes due to Ocriplasmin. Commercial Relationships: Maribel La Fontaine, None; Fadi Shaya, None; Kent W. Small, None Program Number: 1202 Poster Board Number: D0179 Presentation Time: 3:15 PM–5:00 PM Changes in the macular ganglion cell complex thickness associated to diseases of the vitreomacular interface Antonio Ferreras1, 2, Patricia Ramiro3, Pilar Calvo1, Blanca Monsalve4, Beatriz Abadia1, Ana Belen Pajarin5. 1Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain; 2University of Zaragoza, Zaragoza, Spain; 3Hospital Clinico Lozano Blesa, Zaragoza, Spain; 4Hospital General Universitario Gregorio Marañon, Madrid, Spain; 5Centro de Salud Seminario, Zaragoza, Spain. Purpose: To compare the macular retinal ganglion cell plus inner plexiform layer (RGC) thickness between individuals with normal vitreomacular interface and subjects with vitreomacular adhesion (VMA), vitreomacular traction (VMT) and macular holes (MHs). Methods: The Institutional Review Board approved this retrospective cohort study. Nine hundred fifteen clinical charts were revised. The sample was divided into 4 groups according to the International Vitreomacular Traction Study Group Classification of VMA, VMT, and MH. The normal group comprised 797 eyes, the VMA group included 100 eyes, and the VMT and MH groups had 10 and 8 eyes, respectively. All participants had to have a good quality (≥6/10) macular spectral-domain optical coherence tomography (OCT) scan performed with the Cirrus HD OCT (Carl Zeiss Meditec, Dublin, CA). The Macular Cube 512x128 scans were analyzed with the Ganglion Cell Analysis protocol. Left eye data were converted to a right eye format. The RGC thicknesses were compared by oneway analysis of variance (ANOVA; Scheffe post hoc multiple comparisons test) between groups. The Bonferroni correction for multiple comparisons was applied, resulting in a significance level of p≤0.006. Results: Age did not differ significantly between the groups. The VMA (p=0.001) and the VMT (p=0.002) groups had a thinner GCL in the superior sector compared to the normal group. The MH group had a thinner GCL than the control group in the superior nasal (p=0.002) and inferior nasal (p=0.001) sectors, while the GCL in the AVM and MH groups was thinner than the normal group in the inferior sector (p<0.001 and p=0.002, respectively). The average GCL + inner plexiform layer thickness was reduced in the AVM and MH groups while the minimum GCL + inner plexiform layer was thinner in the AVM and VMT groups. Conclusions: A reduction of the inner layers was related to diseases of the vitreomacular interface. In general, the GCL measured by Cirrus OCT was thinner in the VMA, VMT and the MH groups compared to the normal group. Commercial Relationships: Antonio Ferreras, None; Patricia Ramiro, None; Pilar Calvo, None; Blanca Monsalve, None; Beatriz Abadia, None; Ana Belen Pajarin, None Program Number: 1203 Poster Board Number: D0180 Presentation Time: 3:15 PM–5:00 PM Six-Month Results From the ORBIT Study: Ocriplasmin Research to Better Inform Treatment of Symptomatic Vitreomacular Adhesion Jay S. Duker1, 2, David S. Boyer3, 4, Jeffrey S. Heier5, Peter K. Kaiser6, 7, Mathew W. MacCumber8, 9, Dante J. Pieramici10, 11. 1 Ophthalmology, New England Eye Center, Boston, MA; 2Tufts Medical Center, Boston, MA; 3Retina-Vitreous Associates Medical Group, Los Angeles, CA; 4University of Southern California, Los Angeles, CA; 5Ophthalmic Consultants of Boston, Boston, MA; 6Cole Eye Institute, Cleveland, OH; 7Cleveland Clinic, Cleveland, OH; 8 Illinois Retina Associates, Chicago, IL; 9Rush University Medical Center, Chicago, IL; 10California Retina Consultants, Santa Barbara, CA; 11California Retina Research Foundation, Santa Barbara, CA. ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts Purpose: The large Phase IV ORBIT study prospectively and systematically collects real-world data on clinical outcomes and safety in patients receiving ocriplasmin according to standard of care in US retina clinics. This study provides real-world efficacy and safety data complementary to the Phase III MIVI-TRUST trials and may further define appropriate patients for ocriplasmin treatment. Methods: ORBIT is a multicenter, prospective, observational Phase IV study that plans to enroll 1500 patients from approximately 120 US clinical retina sites. Patients are enrolled at the time of ocriplasmin injection, and baseline and post-injection data are collected; patients are followed for up to 12 months. Treatment decisions, including the frequency and timing of patient visits after injection, are at the discretion of the treating physician following standard of care, and are not mandated by the study design. Clinical effectiveness and safety data are entered in electronic case report forms, based on investigator assessments. SD-OCT images are uploaded to a central reading center for independent review. Results: Here we present preliminary demographic and patient baseline data obtained from the initial 6 months of the ORBIT study. Data from both investigator and reading center assessments, as well as clinical outcome and safety data captured over the first 6 months of the study are included. As of 11/11/14, 243 patients were enrolled from 110 clinics. Baseline demographics and ocular characteristics for these 243 patients are presented in Table 1. Mean age is 79 years (range=46–92 years); 66% of patients are female. Pre-injection ocular symptoms (in >3% of patients) included decreased visual acuity, metamorphopsia, floaters, central visual field defect/central black spot, difficulty reading at close distance, photopsia, and eye pain/ ocular discomfort. (Table 1) Conclusions: Data collected from the ORBIT study will assess the real-world efficacy and safety profile of ocriplasmin, better characterize post-injection patient experiences, and help identify patients who may respond best to ocriplasmin therapy. Commercial Relationships: Jay S. Duker, Alcon/Novartis (C), ThromboGenics (C); David S. Boyer, Alcon (C), ThromboGenics (C); Jeffrey S. Heier, Alcon (C), Alcon (F), ThromboGenics (C); Peter K. Kaiser, Alcon (C), ThromboGenics (C); Mathew W. MacCumber, Thrombogenics (C), ThromboGenics (F); Dante J. Pieramici, ThromboGenics (C) Support: ThromboGenics Clinical Trial: NCT02079883 Program Number: 1204 Poster Board Number: D0181 Presentation Time: 3:15 PM–5:00 PM Extended Follow-up of Ocriplasmin for Vitreomacular Traction Release David Dyer, William Anderson, Michael P. Ellis, Robert Breeden. Retina Associates, P.A., Overland Park, KS. Purpose: To evaluate the parameters that may be predictive in which ocriplasmin (Jetrea®) may be more likely to lyse vitreomacular adhesions in patients with vitreomacular traction (VMT). The main parameter analyzed was size of greatest linear dimension (GLD) and resolution was followed out to 12 months follow-up. Methods: A retrospective chart review of consecutive VMT cases treated with ocriplasmin intravitreal injection and followed for at least 1 month and no greater than 12 months. Status of VMT resolution was assessed using Spectral Domain Optical Coherence Tomography (SD-OCT). Several parameters were assessed including coexisting ocular conditions to create a more thorough sub-analysis of the use of ocriplasmin. Information was recorded at intervals of date pre-injection, date of injection, 1 month, 3 months, 6 months and 12 months post-injection. Results: 36 eyes were followed retrospectively for an average of 6.7 ± 4.3 months in 34 patients, 19 (55.9%) male and 15 (44.1%) female. ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts Complete resolution of VMT status post ocriplasmin injection was seen in 13 of 36 eyes (36.1%) at a mean of 39.5 days follow-up. 3 of the 13 eyes (23.1%) that had resolving VMT, resolved after the 1 month follow-up point. The mean GLD of VMT resolution was 367 ± 97 microns. Conclusions: Ocriplasmin intravitreal injection is an effective alternative to vitrectomy in many patients with VMT. Our results show a private-practice example that the drug may be used most effectively in the patients with a GLD of <550 microns. Commercial Relationships: David Dyer, None; William Anderson, None; Michael P. Ellis, None; Robert Breeden, None Program Number: 1205 Poster Board Number: D0182 Presentation Time: 3:15 PM–5:00 PM New Proposed Classification For Tomographic Posterior Vitreous Detachment (PVD), And High Prevalence Of Type 3 PVD In Diabetic Macular Edema Among Diabetic Patients David Rivera4, 1, liliana Pérez-Peralta4, 1, Aida Jimenez-Corona2, Sergio Hernández-Jiménez1, Carlos A. Aguilar-Salinas3, Enrique O. Graue2. 1Centro de atención Integral Del Paciente Con Diabetes, Instituto Nacional De Ciencias Médicas y Nutrición Salvador Zubirán, Mexico, Mexico; 2Instituto de oftalmología Fundación Conde de Valenciana, Mexico, Mexico; 3Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico city, Mexico; 4Centro de Atención Integral del Paciente con Diabetes, Institute of Ophthalmology Fundación Conde De Valenciana IAP., Mexico city, Mexico. Purpose: To describe and propose an new classification of posterior vitreous detachment measured by optic coherence tomography, and to describe the correlation between the proposed types of PVD and diabetic macular edema. Methods: A prospective study of 122 eyes of 61 consecutive patients of a diabetes clinic were examined. Patients had the diagnosis of diabetes and OCT was performed with a spectral-domain OCT. The imaging of the macula was assessed by a 300 OCT image crossing the center of the fovea. According the posterior vitreous status 8 types were described. 0 – Attached; 1 – Mild detachment; 2 – Perifoveal detachment with hyaloidal central adhesión in “U” shape; 3 - Perifoveal detachment with hyaloidal central adhesión in “inverted-U” shape; 4 – Perifoveal detachment with central adhesión, asymetric detachment, higher on one side of the fovea, both in “U”shape; 5 - Perifoveal detachment with central adhesión, asymetric detachment, higher on one side of the fovea, one in “U”shape and one in “inverted-U” shape; 6 - Perifoveal detachment with central adhesión, asymetric detachment, higher on one side of the fovea, both in “inverted-U”shape; 7 – Detached; 8 – No classifiable. Macular edema was classified according to the international classification in mild, moderate and sever. Statistical analysis was performed using a Fisher exact test. Results: Frequencies in the whole population of the different types of PVD are the following: Type 1: 27%, 2: 17%, 3: 11%, 4: 16%, 5:0%, 6:5%, 7: 20%, 8: 2%. Particularly, type 3 PVD was statistically associated with eyes presenting moderate and severe macular edema with an Odds ratio of 4.038 (IC95% 1.34-12.17, P=0.013). Patients with moderate and severe edema had a frequency of 36.8% of type 3 PVD, while patients without edema had a frequency of 13%. Such association was not found with mild and none macular edema. Conclusions: In this novel classification, patients with moderate/ severe macular edema had 4 times more possibilities of having type 3 PVD (Inverted “U” perifoveal) when compared with patients with mild or no edema. Type 3 PVD is statistially associated with moderate and severe stages of diabetic macular edema. This provides another proven factor to the multifactorial pathogenesis of this diabetic macular edema. Commercial Relationships: David Rivera, None; liliana PérezPeralta, None; Aida Jimenez-Corona, None; Sergio HernándezJiménez, None; Carlos A. Aguilar-Salinas, None; Enrique O. Graue, None Program Number: 1206 Poster Board Number: D0183 Presentation Time: 3:15 PM–5:00 PM The vitreo macular interface and the response to Anti VEGF therapy Kanishka R. Mendis, Helmut Yu, Shadbolt Bruce. ophthalmology, The Canberra Hospital, Canberra, ACT, Australia. Purpose: To analyze the vitreo macular interface (VMI) in VEGF inhibited patients and to investigate if VMI change has an effect on the treatment response. Methods: We performed a retrospective, observational, clinical study. Neo vascular age macular degeneration (NVAMD), exudative diabetic maculopathy (DME) and retina vein obstruction (RVO) with macular edema were studied. Three VMI groups were identified, vitreo macular adhesion (VMA), vitreo macular partial detachment (VMPD) and vitreo macular detachment (VMD). Patients diagnosed with fundus fluorescein angiography and serial spectral domain OCT (SD OCT) scans were included. Patients with a history of vitrectomy were excluded. Patients with VMA but who later developed VMD were included. Generalised linear models and repeated measures ANOVAs were used to evaluate the effect of diagnosis and VMI types on outcome measures, VA and CMT with adjustments for confounding and multiple testing (Bonferroni). Results: 93 eyes of 85 patients treated with anti VEGF therapy for wet AMD (55 eyes), DME (18) and RVO (20) were identified. The median age of patients with NVAMD, RVO and CIDME were 70.77, 59.29 and 33 respectively. The distribution of VMA, VMPD, VMD in wet AMD, RVO, DME were, 3,3,49; 5,2,10 and 6, 2, 7 respectively. Six patients changed from VMA to VMPD. The CMT was significantly (p=0.05) reduced in the three disease categories and variable between the VMI types with AMD with VMA having the most significant (p=0.03) reduction. There was no statistically significant difference in VA between VMI groups. Conclusions: VMI may contribute to response to anti VEGF in AMD. Commercial Relationships: Kanishka R. Mendis, None; Helmut Yu, None; Shadbolt Bruce, None Program Number: 1207 Poster Board Number: D0184 Presentation Time: 3:15 PM–5:00 PM Ultra-Widefield Spectral Domain Optical Coherence Tomography Enhanced Vitreous Imaging for Vitreoretinal Interface Visualization Matteo G. Cereda, Mariano Cozzi, Marco Pellegrini, Ferdinando Bottoni, Giovanni Staurenghi. Department of Clinical and Biomedical Science “Luigi Sacco”, Eye Clinic Sacco Hospital Milan Italy, Milano, Italy. Purpose: to evaluate 100 degrees horizontal and vertical vitreoretinal interface from the macula into periphery using Spectral Domain Optical Coherence Tomography (SD-OCT) Enhanced Vitreous Imaging (EVI) montage images of three different 55 degrees B-scan obtained on the same line. Methods: Observational case series of 25 eyes. Consecutive patients from Vitreoretinal Clinic of Luigi Sacco Hospital were scanned using a new widefield OCT module of Heidelberg Spectralis (Heidelberg Spectralis, Heidelberg Engineering, Germany software version ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts 6.0.9) that allows to extend the field of view of OCT cross-sectional imaging to 55 degrees (approx. 16.5mm). Each eye was scanned in 6 different locations, 3 horizontal B-scan (central, temporal and nasal) and 3 vertical B-scan (central superior and inferior). In order to match the three different scans we moved the internal fixation light. A montage technique (Photoshop Elements version 11; Adobe, San Jose, CA) has been used to generate horizzontal and vertical SD-OCT images approximately 100 degrees wide spanning through the fovea. Retinal layers were positioned inferiorly on the image screen to achieve adequate imaging resolution of vitreoretinal interface, furthermore as described in literature as EVI technique we added circa 2 diopters to the OCT focus and set the ART to 100 frames. Results: All 50 montage images were created and all had good qualit. In 3 eyes vitreous was not visible in both horizontal and vertical montage images (1 full-thickness macular hole and 2 pucker). In 1 eye with posterior vitreous detachment vitreous was well visible in both montage images but not showing any area of persistent attachment at the periphery. In the remaining 21 eyes cortical vitreous was well discernible with adhesion areas at the posterior pole and/ or at the periphery (14 incomplete posterior vitreous detachment, 4 vitreous macular traction, 3 vitreomacular adhesion). Conclusions: Ultra widefield OCT with EVI technique can clearly show detailed information of peripheral vitreoretinal interface, including shape and extension of shallow vitreous detachments. Moreover vertical EVI ultra widefield OCT apparently gives better imaging quality of vitreous structure than the horizontal ones. OCT’s companies should improve their software including an automatic tool to create montage images. Commercial Relationships: Matteo G. Cereda, None; Mariano Cozzi, None; Marco Pellegrini, None; Ferdinando Bottoni, None; Giovanni Staurenghi, ALCON LABORATORIES, INC (C), HEIDELBERG ENGINEERING (C), OPTOS, INC (C), OPTOVUE (S), ZEISS (C), ZEISS (S) Program Number: 1208 Poster Board Number: D0185 Presentation Time: 3:15 PM–5:00 PM Visualization of Posterior Vitreous Detachment with SpectralDomain OCT Manuela Mambretti, Ferdinando Bottoni, Matteo G. Cereda, Anna Paola Salvetti, Mario V. Cigada, Giovanni Staurenghi. Eye Clinic - Department of Clinical Science “Luigi Sacco”, Sacco Hospital, Milan, Italy. Purpose: To compare different Spectral-Domain Optical Coherence Tomographers (SD-OCTs) and different scan widths in the evaluation of posterior vitreous detachment. Methods: Retrospective analysis of SD-OCT scans acquired the same day from sixty-nine consecutive patients using: OCT RS-3000 Advance by Nidek (12 millimeters horizontal macula scan); OCT Avanti RtVue XR by Optovue (12 millimeters horizontal macula scan) and OCT Spectralis by Heidelberg Engineering (6 and 9 millimeters horizontal scans through the fovea and a “composite” image, approximately 15 millimeters wide, obtained by composing horizontal overlapping scans from the macula and the periphery). Images were randomized and reviewed separately by two vitreoretinal experts, who evaluated the degree of posterior vitreous detachment (PVD) and whether the Bursa Premacularis (BP) could be detected. To test the agreement between the two examiners for PVD grading, Cohen’s kappa was computed; smaller weights were post-hoc assigned to grades corresponding to no PVD and complete PVD as they were the primary source of disagreement. Results: 345 images were evaluated. Interobserver agreement for PVD was found to be fair to moderate with OCT Spectralis scans, with the highest agreement obtained with composite scans (κ = 0,569). With 12 millimeters scans, agreement was found to be substantial with both OCT RS-3000 Advance (κ = 0,654) and OCT Avanti RtVue XR scans (κ = 0,758). Weighted Cohen’s kappa shows interobserver agreement to be almost perfect (κ = 0,808 to 0,913) for all SD-OCT instruments and scans. With OCT Spectralis, the BP was observed in up to 29,0% of 6 and 9 mm scans and 39,1% of composite scans (χ2 = 2,5; P = 0,3). The BP was detected in up to 55,1% of OCT Avanti RtVue XR scans and 63,8% of OCT RS-3000 Advance scans (χ2 = 19,6; P = 0,0006). Conclusions: SD-OCT grading of PVD guarantees high interobserver reproducibility when applied to the first stages of PVD. The distinction between no PVD and complete PVD is subject to higher interobserver variability. In this study, the best results were obtained using 12 mm scans, which also allow for better visualization of posterior vitreous structures. Prevalence of the BP (both overall and corrected by degree of PVD) with 12millimeters scans is consistent with previously reported data. Commercial Relationships: Manuela Mambretti, None; Ferdinando Bottoni, Novartis Pharmaceuticals Corporation (C); Matteo G. Cereda, None; Anna Paola Salvetti, None; Mario V. Cigada, None; Giovanni Staurenghi, Alcon Laboratories, Inc. (C), Allergan Inc. (C), Bayer (C), Boehringer (C), Glaxosmithkline (C), Heidelberg Engineering (C), Novartis Pharmaceuticals Corporation (C), Novartis Pharmaceuticals Corporation (S), Ocular Instruments, Inc. (P), OD - OS (C), Optos, Inc (C), Optovue (S), QLT Phototerapeutics, Inc. (C), Roche (C), Zeiss (C), Zeiss (S) Program Number: 1209 Poster Board Number: D0186 Presentation Time: 3:15 PM–5:00 PM Incidence and clinical characteristics of epiretinal membrane developing after posterior vitreous detachment Gavin S. Tan1, 2, Mark S. Blumenkranz2. 1Singapore National Eye Centre, Mountain View, CA; 2Byers Eye Institute, Stanford University, Palo Alto, CA. Purpose: To describe the incidence and clinical characteristics of epiretinal membrane (ERM) developing after posterior vitreous detachment (PVD), in a patient population presenting to a tertiary eye care centre. Methods: We identified subjects that presented with acute symptoms of PVD to the ophthalmology clinics at Stanford university. Optical coherence tomography(OCT) was performed to confirm the presence of PVD. Subjects with pre-existing ERM and other ocular conditions which may cause secondary ERM (eg: retinal vein occlusion, uveitis, diabetic retinopathy, trauma) were excluded. Subjects were followed up for at least 2 years for the development of ERM on repeat OCT. Results: 157 subjects were included over a 1 year period. The mean age of subjects presenting with PVD was 65.2 (+/-11.0) years. 7 eyes (4.5%) developed ERM within the followup period. Epiretinal membrane was diagnosed on OCT on average 289 days (+/-235) after PVD. The incidence of retinal tears after PVD was similar in the group that developed ERM (14%) and the group that did not develop ERM (12%) (p=0.856). All cases with tears had laser retinopexy performed. Mean visual acuity was worse in the ERM group (20/38) compared with the No ERM group (20/26) (p=0.01). 43% of ERM cases had visual acuity worse than 20/40. Conclusions: ERM is diagnosed an average of 9 months after PVD and results in worse VA than those without ERM. Retinal tears occurring after the PVD was not a risk factor for developing ERM. Commercial Relationships: Gavin S. Tan, None; Mark S. Blumenkranz, None ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts Program Number: 1210 Poster Board Number: D0187 Presentation Time: 3:15 PM–5:00 PM Wild-field Spectral-Domain OCT findings of eyes with symptomatic vitreo-foveal traction treated with intravitreal Ocriplasmin: a look outside the macula. Stefano Erba, Sara Bochicchio, Mariano Cozzi, carlo domenico bianchi, Matteo G. Cereda, Giovanni Staurenghi. Sacco Hospital, Eye clinic, Department of Clinical Science, Seveso, Italy. Purpose: To evaluate the baseline features and the changes of vitreopapillary adhesion(VPA) and vitreo-retinal adhesions(VRA) till the mid periphery of patients that underwent an intravitreal Ocriplasmin injection (Jetrea, Thrombogenics USA, Alcon/Novartis EU) Methods: A retrospective case series of patients treated with Ocriplasmin for sVFT selected on the basis of the MIVI-TRUST trial results. Images of single SD-OCT B-scans (Heidelberg Spectralis, Heidelberg Engeneering, Germany) passing through the fovea were obtained till temporal and nasal mid periphery (horizontal scans), and till superior and inferior mid periphery (vertical scans). All patients underwent SD-OCT before intravitreal Ocriplasmin injection, after one week and one month. We also measured the variations of vitreous detachment from the traction to the mid periphery in all the quadrants Results: Seven patients ( 7 eyes), two male and five female, met the inclusion criteria. 5 eyes presented sVFT and 2 eyes had sVFT with a full thickness macular hole. At baseline all 7 eyes had VPA; all 7 eyes had visible VRA in the nasal side; 6 eyes had visible VRA in all the quadrants; in 1 patient VRA was visible only nasally. After Ocriplasmin injection sVFT resolved in 5 of the 7 patients. VPA resolved in two eyes where also a resolution of the mid periphery VRA was noted in all the quadrants. Nasal VRA persisted in the others 5 patients. Four patients had still a visible VRA in all the quadrants after the injection. Measures of vitreous detachment showed, in all the quadrants, only mild increase after injection Conclusions: Ocriplasmin injection induced a total PVD with the complete resolution of the sVFT and the VPA in only two eyes of our series. While VFT resolved in 5 of 7 eyes, in the majority of our patients no significant changes were noted in the mid periphery VRA. Our results confirm that Ocriplasmin injection is surely an effective option for the treatment of the sVFT. On the other hand it is not clear if ocriplasmin could only resolve the sVFT or accelerate and even induce a total PVD from the back of the eye. Moreover we still don’t know if the evaluation of the relationship between the vitreous and the retina and the head of the optic nerve and the mid periphery could provide more informations for a careful selection of the patients eligible for the treatment with Ocriplasmin Commercial Relationships: Stefano Erba, None; Sara Bochicchio, None; Mariano Cozzi, Heidelberg Engineering (R); carlo domenico bianchi, None; Matteo G. Cereda, None; Giovanni Staurenghi, Alcon Laboratories, Inc (C), Allergan, Inc (C), Bayer (C), Boehringer (C), Genentech (C), GlaxoSmithKline (C), Heidelberg Engineering (C), Novartis Pharmaceuticals Corporation (C), Novartis Pharmaceuticals Corporation (S), Ocular Instruments, Inc (P), Optos, Inc (C), Optovue (S), Roche (C), Zeiss (C), Zeiss (S) Purpose: Tissue plasminogen activator (tPA) is a thrombolytic agent which has the ability to degrade and dissolve fibrin clot. Although the efficacy of intravitreal tPA injections has been shown in clinical practice, the ability of intravitreal Injected tPA to diffuse from the vitreous through the retina and into the subretinal space has been questioned in an experimental models, as tPA conjugated to fluorescein, failed to penetrate the retina. We investigate whether an unconjugated tPA injected into the vitreous could penetrate the neural retina and enter the subretinal space, in a rat model. Methods: 24 rats eyes were used in the study.14 right eyes were injected with intravitreal tPA (0.75 μg/3 μl), 10 right eyes were injected with intravitreal saline, and served as controls. 3, 24, and 48 hours after tPA injection, animals were euthanized and eyes were taken for cryosections and immunohfluorescence staining. Goat anti tPA, followed by alexafluor 568 donkey anti goat (invitrogene) were used for tPA detection. Results: TPA staining was detected in deep retinal layers in all eyes injected with intravitreal tPA. A deeper and more intense staining of tPA was seen after 3 and 24 hours, compared to a decreased staining 48 hours from injection. No staining of tPA was detected in the retina in the eyes injected with saline. Conclusions: We demonstrated that an unconjugated tPA at a dose of (0.75 μg / 3 μl) injected into the vitreous penetrates the retina of rats. We speculate that former rabbit model studies that failed to show penetration of tPA to the retina may be explained by the use of conjugated tPA that doesn’t penetrate the retina. Lack of immunohfluorescence staining in the retina of the eye 3 hours after injected with intravitreal Saline. TPA staining seen here is of vitreous alone. Blue indicate staining of 300 nM 4,6-diamidino-2phenylidole (Sigma). Program Number: 1211 Poster Board Number: D0188 Presentation Time: 3:15 PM–5:00 PM Penetration of Intravitreal Injected Tissue Plasminogen Activator to the Retina - Rats Model Study Kfir Tal1, 2, Assaf Dotan1, 2, Yael Nisgav3, Mor Dachbash3, Rita Ehrlich1, 2, Dov Weinberger1, 2, Tami Livnat3, 2. 1Department of Ophthalmology, Rabin Medical Center,Beilinson Campus Petach Tikva 49101, Israel, Petach Tikva, Israel; 2Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; 3Laboratory of Eye Research, Felsenstein Medical Research Center, Petah Tikva, Israel. ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts The intraclass correlation coefficient for macula, RNFL was 0.994 and 0.975 respectively in patients with macular hole, while ICC for GCIPL was measured as at 0.702. The measurement repeatability for macular, RNFL and GCIPL was high in the normal fellow eye. Conclusions: The repeatability and the thickness of GCIPL measurements was lower in patients with macular hole. The impact of changes in macular shape caused by the macular hole should be taken into consideration when measuring GCIPL thickness in various eye diseases such as glaucoma and neuro-ophthalmology. Commercial Relationships: Jung Yeul Kim, None; Han-min Lee, None; Il-hwan Shin, None; Chang-Sik Kim, None Goat anti tPA, followed by alexafluor 568 donkey anti goat (invitrogene) were used for tPA detection. TPA staining was detected in deep retinal layers in all eyes injected with 0.75 μg/3 μl intravitreal tPA. Here 24 hours after injection. Commercial Relationships: Kfir Tal, None; Assaf Dotan, None; Yael Nisgav, None; Mor Dachbash, None; Rita Ehrlich, None; Dov Weinberger, None; Tami Livnat, None Support: Support Detail (Abstract): This study was supported by a grant from the Claire and The Amedee Maratier Institute for the study of blindness and visual disorders, Sackler Faculty of Medicine, TelAviv University. Program Number: 1212 Poster Board Number: D0189 Presentation Time: 3:15 PM–5:00 PM Thickness of the Macula, Retinal Nerve Fiber Layer and Ganglion Cell-Inner Plexiform Layer in the Macular hole : The Repeatability Study of Spectral Domain Optical Coherence Tomography Jung Yeul Kim, Han-min Lee, Il-hwan Shin, Chang-Sik Kim. Ophthalmology, Chungnam Natl Univ Hosp, Daejeon, Korea (the Republic of). Purpose: We measured the thickness of the ganglion cell innerplexiform layer (GCIPL), macula and retinal nerve fiber layer(RNFL) using spectral domain optical coherence tomography(SD-OCT) in patients with idiopathic macular hole to analyze repeatability and for comparison with fellow eye. Methods: We analyzed 82 patients who visited our retinal clinic. An experienced examiner obtained two consecutive measurements from a macular cube 512 × 128 scan using SD-OCT and optic disc cube 200 X 200 scan. The patients were divided into three groups according to macular hole size(group A macular hole size < 400 mm, group B 400 mm < macular hole size < 1200 mm, and group C macular hole size < 1200 mm). Repeatability was determined by comparing the thickness of GCIPL, macula and RNFL values with normal fellow eye. Results: The average central macular thickness in patients with macular hole was 339.9±92.3 which is significantly thicker than the normal fellow eye which was 251.7±62.2 . The average thickness of GCIPL in patients with macular hole was significantly thinner at 57.6±22.5, compared to normal fellow eye which was 77.6±12.7 . There were no significant differences among three groups in terms of the GCIPL thickness. There were no significant differences in terms of the average RNFL thickness(p>0.05). Program Number: 1213 Poster Board Number: D0190 Presentation Time: 3:15 PM–5:00 PM Characteristics of epiretinal proliferation: A distinguishing feature of lamellar macular holes Yuji Itoh, Ashleigh L. Levison, Peter K. Kaiser, Sunil K. Srivastava, Rishi P. Singh, Justis P. Ehlers. Cole eye institute, Cleveland Clinic, Beachwood, OH. Purpose: To characterize the features of hyporeflective epiretinal proliferations in vitreomacular interface disorders. Methods: This is a retrospective review of patients with lamellar macular hole (LMH), epiretinal membrane (ERM), macular pseudohole (MPH), full-thickness macular hole (FTMH) and vitreomacular traction syndrome (VMT). Patients from September 2009 to February 2014 were identified through ICD-9 billing codes. All SDOCT images were obtained using Cirrus HD-OCT. If present, the hyporeflective proliferation was further characterized. Patients with history of intravitreal therapy or vitrectomy were excluded. OCT images were analyzed Cirrus review software as well as a novel OCT analysis software for area and volumetric analysis of pathology. Brightness of the epiretinal proliferation and each retinal layer was evaluated by Image J software. Results: Epiretinal proliferation was found in 304 of 4144 eyes (7.3%); 178 of 305 eyes with LMH (58.4%), 31 of 204 eyes with FTMH (12.9%), 93 of 3365 eyes with ERM (2.8%), 2 of 102 eyes with MPH (2%) and 0 of 132 eyes with VMT. Of the eyes with LMH, age with the proliferation (mean; 71.7) was not significantly differenced with that without the proliferation (71.9). The visual acuity of these two groups was not significantly changed during observation period (P = 0.86, 0.33, respectively). The maximum thickness (35.1 ± 21.6 μm at initial visit, 42.1 ± 23.5 at final visit), maximum area (0.045 ± 0.046 mm2, 0.056 ± 0.052), volume (0.048 ± 0.074 mm3, 0.064 ± 0.096) were significantly increased during this observation (P < 0.01, for all). The epiretinal proliferation in LMH were encapsulated by ERM (group A) in 60 of 178 (34%) eyes as shown in figure 1, and 118 (66%) eyes did not have encapsulated epiretinal proliferations (group B) also shown in figure 2. The maximum thickness, maximum area and volume were all significantly larger in the group B than group A (P < 0.01, for all). The brightness of the epiretinal proliferation (110.1 ± 20.7 a.u.) was close to that of ganglion cell layer (112.5 ± 20.7) and outer plexiform layer (117.7 ± 19.6). Conclusions: The hyporeflective epiretinal proliferation is a distinct entity that appears to be present in multiple vitreomacular interface disorders, particularly LMH. Further study is needed to understand its role in the pathophysiology of LMH and its implications for surgical and visual outcomes. ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts morphologies. (Group 1): Normal foveal contour with operculum in 5 eyes (29.4%); (Group 2): Normal foveal contour without operculum in 4 eyes (23.5%); (Group 3): Lamellar hole with operculum in 3 eyes (17.6%) and Group 4: Lamellar hole without operculum in 5 eyes (29.4%). Eight eyes (47.1%) had thinning of the umbo with a discontinuous ILM layer. Two eyes in Group 2 and 1 eye in Group 3 were found to have irregularities/discontinuous areas in the ellipsoid zone. All study eyes had an intact and continuous ELM. Conclusions: Aborted macular holes have a variety of OCT findings that range from apparently normal to marked thinning of the umbo. Despite these changes, eyes with aborted MH generally retain good visual acuity. A consistent OCT feature is preservation of a continuous ELM, which provides insight into the difference in the pathophysiology of aborted versus full-thickness macular holes. Commercial Relationships: Yuji Itoh, None; Ashleigh L. Levison, None; Peter K. Kaiser, Alcon (C), Bausch and Lomb (C), Bausch and Lomb (C), Carl Zeiss Meditec (C), Topcon (C); Sunil K. Srivastava, Allergan (R), Bausch and Lomb (C), Bausch and Lomb (R), Bioptigen (P), Carl Zeiss Meditec (C), Leica (C), Synergetics (P); Rishi P. Singh, Carl Zeiss Meditec (C); Justis P. Ehlers, Alcon (C), Bioptigen (C), Bioptigen (F), Bioptigen (P), Carl Zeiss Meditec (C), Carl Zeiss Meditec (F), Genentech (F), Leica (C), Leica (F), Synergetics (P), Thrombogenics (C), Thrombogenics (F) Support: NIH/NEI K23-EY022947-01A1 (JPE); The Robert Machemer Vitreoretinal Scholarship (YI) Program Number: 1214 Poster Board Number: D0191 Presentation Time: 3:15 PM–5:00 PM The Aborted Macular Hole: An Optical Coherence Tomography Study Jerome V. Giovinazzo, Steven Agemy, Jessica Lee, Ronald C. Gentile. Ophthalmology, New York Eye and Ear of Mount Sinai, New York, NY. Purpose: To describe the spectral-domain optical coherence tomography (SD-OCT) findings in aborted macular holes. Methods: A retrospective chart review of consecutive patients with a diagnosis of an aborted macular hole (MH) was performed. Criteria included a stage 1 macular hole that aborted as confirmed by OCT (Criteria 1) or an eye that had evidence of an aborted MH based on a combination of history, fundus exam, OCT, and fellow eye findings (Criteria 2). Data collected included demographics, eye involved, visual acuity, and fellow eye retinal diagnoses. OCT of the aborted MH was analyzed for abnormalities in the foveal contour, presence/ absence of pre-foveal opercula, and pre/intra-retinal abnormalities. Results: Aborted macular holes were identified in 17 eyes of 14 subjects. Mean age was 66.7±8.9SD years. Twelve (85.7%) of the subjects were women and 2 (14.3%) were men with involvement of both eyes in 3, right eye in 7, and left eye in 4. Mean best-corrected visual acuities (LogMAR) were 0.15±0.20 in the study eyes and 0.30±0.34 in the fellow eyes. Diagnosis of an aborted MH was made using Criteria 1 in 8 eyes (47%) and Criteria 2 in 9 eyes (53%). There were 10 fellow eyes with fundus visibility of which 3 (27.3%) were normal, 5 (45.5%) had a MH or a repaired MH, and 1 each (9.1%) had a lamellar hole and vitreomacular adhesion. OCT of the aborted MH could be separated into 4 different groups based on OCT SD-OCT image of an aborted MH showing umbo thinning with a pre-foveal operculum. There is disruption of the ellipsoid zone and an intact ELM. Commercial Relationships: Jerome V. Giovinazzo, None; Steven Agemy, None; Jessica Lee, None; Ronald C. Gentile, Alcon (C) Program Number: 1215 Poster Board Number: D0192 Presentation Time: 3:15 PM–5:00 PM Wider retinal artery trajectories in eyes with macular hole than in fellow eyes of patients with unilateral idiopathic macular hole Naoya Yoshihara, Takehiro Yamashita, Toshifumi Yamashita, Keita Yamakiri, Shozo Sonoda, Taiji Sakamoto. Ophthalmology, Kagoshima University, Kagoshima, Japan. Purpose: To determine whether the width of the retinal artery (RA) trajectory was associated with the formation of macular holes (MHs). Methods: This is a retrospective, cross sectional, case-control study comprised 55 patients of MH in a single academic hospital. Participants are consecutive patients with a unilateral MH and healthy fellow eyes. The RA trajectory was calculated by a mathematical model. The coordinates of the best fit curve of the RA trajectory were determined automatically based upon these plots using the ImageJ program. The converted coordinates were fit to a second degree polynomial (ax2/100 + bx + c) equation. The constant ‘a’ is related to the width and steepness of the curve and was used as a measure of the RA trajectory. Main outcome measures are the width and steepness of the RA trajectory, “a”, of the eye with a MH eye was compared to that of the fellow eye. Results: The constant ‘a’ was significantly smaller in eyes with a MH than that of the fellow eyes (0.379 ± 0.094 vs 0.416 ± 0.121, P = 0.001, paired t test), indicating that the RA trajectory was wider in the MH eyes than in the fellow eyes. There was a significant correlation between the axial length and RA trajectory in the MH eyes (R = 0.273, P = 0.044) and in the fellow eyes (R = 0.356, P = 0.008; Spearman’s rank correlation coefficient). ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts Conclusions: Because eyes with a MH have a significantly wider and flatter RA trajectory, there is probably a greater traction on the fovea which is located between the RA arches with fragile macula. These may ultimately cause a MH to develop. Commercial Relationships: Naoya Yoshihara, None; Takehiro Yamashita, None; Toshifumi Yamashita, None; Keita Yamakiri, None; Shozo Sonoda, None; Taiji Sakamoto, None Program Number: 1216 Poster Board Number: D0193 Presentation Time: 3:15 PM–5:00 PM Baseline Characteristics of Vitreomacular Traction Progressing to Full-Thickness Macular or Lamellar Holes in the Phase III Trials of Enzymatic Vitreolysis Eric W. Schneider1, 2, Cynthia A. Toth2, Glenn J. Jaffe2. 1Tennessee Retina, Nashville, TN; 2Duke University Eye Center, Durham, NC. Purpose: To identify characteristics associated with progression from vitreomacular traction (VMT) to a full-thickness macular hole (FTMH) or lamellar hole (LH) following a single intravitreal injection of saline or ocriplasmin. Methods: A post-hoc analysis was performed on 445 eyes with baseline VMT included in a phase III trial evaluating ocriplasmin for symptomatic vitreomacular adhesion (MIVI-TRUST). Exact logistic regression analyses were used to identify baseline characteristics significantly associated with progression from VMT to FTMH or LH over the 6-month study period. Kaplan-Meier survival analysis was performed to compare time to FTMH or LH development between treatment groups. OCT images were graded independently by two certified readers at the Duke OCT Reading Center. Results: Twenty eyes (4.5%) developed a FTMH and 38 (9.7%) developed a LH during the study period. The rate of progression to FTMH or LH did not differ significantly between ocriplasmin- and saline-treated eyes (p=0.125 for FTMH, p=0.348 for LH). Mean time to FTMH and LH development was similar in ocriplasmin- (176.0 days [d] for FTMH, 168.8d for LH) and saline-treated (172.4d for FTMH, 164.7d for LH) (p=0.090 for FTMH, p=0.369 for LH). On univariate analysis, the presence of subretinal fluid (SRF) (adjusted odds ratio [AOR] 5.64, 95% confidence interval [CI] 2.02-17.17, p < 0.001) and mean SRF thickness (AOR 1.10, 95% CI 1.04-1.16, p=0.003) were associated with FTMH development. Both remained significantly associated with FTMH development on multivariate testing. On univariate analysis, the presence of macular schisis (AOR 2.26, 95% CI 1.39-3.82, p=0.004) and mean retinal thickness (AOR 1.06, 95% CI 1.01-1.10, p=0.010) were associated with LH development. There was a trend towards increased progression to LH with baseline intraretinal cysts (AOR 2.62, 95% CI 0.9248.747, p=0.076) that did not reach significance. Schisis remained a significant predictor of LH formation on multivariate testing. Conclusions: VMT, when associated with SRF, is more likely to progress to FTMH while, when associated with intraretinal changes (such as schisis), appears more likely to progress to a LH. These findings suggest a disparate natural history for VMT based on the level of retinal dehiscence (intra- versus subretinal) and argues for continued use of the stage 1 FTMH classification. Commercial Relationships: Eric W. Schneider, None; Cynthia A. Toth, Alcon (P), Bioptigen (F), Genentech (F); Glenn J. Jaffe, Alcon (C), Heidelberg Engineering (C), Neurotech (C) Program Number: 1217 Poster Board Number: D0194 Presentation Time: 3:15 PM–5:00 PM Effect of Vitreomacular Adhesion on Treatment Outcomes in the Ranibizumab for Edema of the mAcula in Diabetes-3 (READ-3) Study Mohammad A. Sadiq1, Mohamed K. Soliman1, 2, Mostafa S. Hanout1, Salman Sarwar1, Aniruddha Agarwal1, Robin High1, Diana V. Do1, Quan Dong Nguyen1, Yasir J. Sepah1. 1University of nebraska medical center, Stanley M. Truhlsen Eye Institute, Omaha, NE; 2 Ophthalmology, Assiut University, Assiut, Egypt. Purpose: The role of vitreomacular adhesion (VMA) in visual and anatomic outcomes has not been explored previously in patients with diabetic macular edema (DME). In this retrospective study, data from patients enrolled in the READ-3 study was analyzed to evaluate the association of VMA with best corrected visual acuity (BCVA) and central retinal thickness (CRT). Methods: In the READ-3 study, patients with DME received monthly IVT injections of either 0.5 or 2.0mg ranibizumab (RBZ). Spectral domain optical coherence tomography (SD-OCT) images (Heidelberg Spectralis®) from patients that completed the M6 primary end point of the study were analyzed at baseline visit (BL) to identify the presence (VMA+) or absence (VMA-) of VMA. Patients with any degree of vitreomacular traction, as defined in published literature, were excluded from analysis. All images were graded by two independent graders. VMA was classified by size of adhesion into either focal (<1500mm) or broad (≥1500mm). Main outcome measures were mean change in BCVA and CRT at M6. Student t-test was performed; statistical significance was set at p<0.05. Results: 152 eyes (152 patients) were randomized in the READ-3 study. 124 eyes (124 patients) were found to be eligible for the study. At BL, 26 patients were classified as VMA(+) and 98 patients were classified as VMA(-). BL characteristics are shown in Table. The distribution of the two doses of RBZ (0.5mg and 2.0mg) between the two groups was equal. At M 6, the VMA(+) group showed a mean improvement of 11.31±6.67 letters, whereas the VMA(-) group showed a mean improvement of 6.86±7.58 letters. The difference between the two groups was statistically significant (p=0.007). Mean improvement in CRT was 173.81±132.31mm and 161.84±131.34 mm in the VMA(+) and VMA(-) groups respectively (p=0.681). At M6, among the 26 VMA(+) eyes (at BL), 12 eyes showed either complete (9) or partial (3) resolution; 12 eyes showed no change in VMA status; 2 eyes were not gradable and were excluded. Changes in VMA status in the VMA(+) group did not lead to statistically significant differences in VA and CRT at M6. Conclusions: Patients with DME and VMA(+) may achieve higher visual gain with anti-VEGF therapy than those who are VMA(-). The analyses also suggest that VMA status should not be a determining factor in considering anti-VEGF therapy for eyes with DME. Table - Baseline Characteristics Commercial Relationships: Mohammad A. Sadiq, None; Mohamed K. Soliman, None; Mostafa S. Hanout, None; Salman Sarwar, None; Aniruddha Agarwal, None; Robin High, None; ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts Diana V. Do, Allergan (C), Genentech (C), Genentech (S), Regeneron (C), Regeneron (S), Santen (C); Quan Dong Nguyen, Genentech (F), Genentech (S), L-path (F), MacuSight (F), Ophthotech (F), Regeneron (F), Regeneron (S), Santen (F); Yasir J. Sepah, None Program Number: 1218 Poster Board Number: D0195 Presentation Time: 3:15 PM–5:00 PM Outcomes of Vitrectomy for Vitreomacular Traction after an Initial Observation Period Jonathan Tzu, Harry W. Flynn, william smiddy. Bascom Palmer Eye Institute, Miami, FL. Purpose: The purpose of this study is to investigate the clinical course and surgical outcomes of patients with vitreomacular traction (VMT) and managed initially by observation, but eventually underwent surgical intervention for development of a macular hole or worsening symptoms Methods: The current study is a non-comparative, multicenter case series of patients with a diagnosis of VMT based on clinical symptoms and findings on spectral domain optical coherence tomography (SD-OCT) between the years of 2006 and 2013. All patients were initially observed but subsequently a small number of patients had surgery because of the development of full thickness macular hole or worsening symptoms. Follow-up including visual acuity, changes in SD-OCT findings, and time to surgery were recorded. Results: VMT by SD-OCT from 5 retina clinics was identified in 230 eyes of 185 patients. These patients were all managed by observation initially. Pars plana vitrectomy (PPV) was eventually performed in 10 of 230 eyes (4.1%). Six of the 10 eyes developed a macular hole, and 4 of the 10 eyes had worsening symptoms from VMT. The mean time of observation before PPV was 23.8 months (range 3 - 76 months). At last follow up, all of 6 the patients who developed a macular hole had successful surgical closure of the hole. The four patients with worsening VMT also had anatomic success- relief of the VMT postoperatively resulting in resolution of subretinal and intraretinal fluid. Postoperative best corrected visual acuities were ≥ 20/40 in 8 of 10 eyes. Conclusions: After a period of initial observation, VMT patients undergoing surgical intervention achieved improved anatomic and visual outcomes. Program Number: 1219 Poster Board Number: D0196 Presentation Time: 3:15 PM–5:00 PM OZONE: Ocriplasmin Ellipsoid Zone Retrospective Data Collection Study K Bailey Freund. 1Ophthalmology, Vitreous Retina Macula Consultants of New York, New York, NY; 2Ophthalmology, New York University School of Medicine, New York, NY. Purpose: Safety and efficacy of ocriplasmin to treat symptomatic vitreomacular adhesion (VMA), was established in phase 3 clinical trials using time-domain optical coherence tomography (TD-OCT) to assess retinal anatomy. Using spectral domain optical coherence tomography (SD-OCT) allows observation and measurement of subtle retinal changes and enables more accurate monitoring of disease progression and response to therapy. A Phase 4 study was designed to retrospectively review and further characterize anatomic and symptomatic changes, using SD-OCT, following treatment of VMA with JETREA® (ocriplasmin). Methods: The Phase 4 OZONE study will include 200 patients from ~30 US sites. Anatomic and symptomatic changes over 6-months in patients treated with ocriplasmin for VMA and imaged with SDOCT. Images will be masked and uploaded to a Central Reading Center (CRC) for review and analysis. The primary endpoint is the proportion of patients with ellipsoid zone disruption by Day 21 postocriplasmin injection, which was not present at baseline. Secondary endpoints include: incidence, time to onset and/or resolution of ellipsoid zone disruption, subretinal fluid development, VMA status, macular hole changes, vitrectomy, visual acuity changes from baseline and adverse drug reactions (Table 1). Results: As of 11/12/14, preliminary data from 52 patients at 11 clinics were available. Preliminary data on baseline characteristics include: mean age: 71 years; gender: 61.5% female; baseline lens status in study eye: phakic= 67%, pseudophakic= 33%, and aphakic=0%; baseline visual acuity in study eye (Snellen) 20/40 or better=29%, 20/50-20/80=52%, and 20/100 or worse= 17%, 10/200= 2%; injection position: supine=83%, sitting=2%, sitting at 45°=12%. Conclusions: The OZONE study utilizing SD-OCT in postocriplasmin patients will further characterize anatomic and symptomatic changes post-ocriplasmin. Data from the full population and image analysis will be available. Commercial Relationships: Jonathan Tzu, None; Harry W. Flynn, None; william smiddy, None Support: Research to Prevent Blindness and NEI Core grant P30EY14801 ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts mm) and broad (>1500 mm), and isolated vs concurrent. Multivariate test of means and t-test were used to compare studied variables. Results: There were 54 eyes of 42 patients (15 females) in the study. There were 18 and 36 eyes with broad and focal VMT, respectively, and 10 and 44 eyes with isolated and concurrent VMT, respectively. There was no difference in the CFT between broad and focal VMT groups (p=0.31). The eyes in the broad VMT group had significantly higher nasal choroidal thickness (p=0.004), subfoveal choroidal thickness (p=0.004), and temporal choroidal thickness (p=0.002) compared to the focal VMT group. The VMT angle was more open in eyes with focal VMT compared to broad VMT (p=0.002). No significant difference was seen between the concurrent and isolated VMT groups in the vitreofoveal angle (p= 0.24). VMT angle correlated positively with the CFT (r= 0.42, p<0.001), whereas no correlation was seen between the VMT angle and the subfoveal choroidal thickness (p=0.38), nasal choroidal thickness (p=0.67) and temporal choroidal thickness (p=0.87). Conclusions: The eyes with broad VMT have thicker choroid and the eyes with focal VMT have more open vitreofoveal angle. Both seem to result from the tractional forces of the vitreous on the macular area. Angle of VMT influences central foveal thickness. Commercial Relationships: Igor Kozak, None; Giulio Barteselli, None; Yasir J. Sepah, None; Mohammad A. Sadiq, None; Robin High, None; Diana V. Do, None; Quan Nguyen, None Commercial Relationships: K Bailey Freund, Bayer HealthCare (C), Genentech (C), Heidelberg Engineering (C), Regeneron (C), ThromboGenics (C) Support: ThromboGenics, The Macula Foundation, Inc. Clinical Trial: NCT02193945 Program Number: 1220 Poster Board Number: D0197 Presentation Time: 3:15 PM–5:00 PM Correlation of vitreomacular traction with foveal thickness, subfoveal choroidal thickness and vitreomacular angle Igor Kozak1, Giulio Barteselli2, Yasir J. Sepah3, Mohammad A. Sadiq3, Robin High3, Diana V. Do3, Quan Nguyen3. 1King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia; 2University of Milan, Milan, Italy; 3University of Nebraska, Omaha, NE. Purpose: To investigate structural characteristics of vitreomacular traction (VMT), especially if there is a correlation between 1) the VMT grade, central foveal thickness (CFT) and the choroidal thickness, 2) the VMT grade and the vitreofoveal angle and 3) the vitreofoveal angle, vitreomacular adhesion (VMA) and choroidal thickness. Methods: Images of patients with VMT were retrospectively studied at the King Khaled Eye Specialist Hospital (Riyadh, Saudi Arabia), the University of Milan (Milan, Italy), and the Truhlsen Eye Institute at the University of Nebraska Medical Center (Omaha, Nebraska, USA). Raster scans of the macula taken with a spectral-domain optical coherence tomography (SD-OCT) device were reviewed. Conventional scans of the vitreoretinal interface were analyzed to measure CFT and degree of vitreofoveal angle. Enhanced depth imaging (EDI) scans were analyzed to measure choroidal thickness in the macula. The VMT was classified based on the International Vitreomacular Traction Study Group Classification into focal (<1500 Program Number: 1221 Poster Board Number: D0198 Presentation Time: 3:15 PM–5:00 PM Size and vitreomacular attachment of Full Thickness Macular Hole Elise Philippakis1, 2, Franck Amouyal1, 2, Aude Couturier1, 2, Elise Boulanger-Semama1, 2, Pascale G. Massin1, 2, Alain Gaudric1, 2, Ramin Tadayoni1, 2. 1Ophthalmology, Lariboisière Hospital, Paris, France; 2 Université Paris 7 Diderot, Paris, France. Purpose: To study the correlation between the vitreomacular attachment and the size of primary full-thickness macular holes. Methods: Retrospective observational case series. The records of 100 consecutive patients operated for primary full thickness macular hole (FTMH) between 2012 and 2013 were reviewed. Collected data included the best corrected visual acuity (BCVA), fundus examination and preoperative spectral domain-optical coherence tomography (SD-OCT). Patients were sorted according to the International Vitreomacular Traction Study Group classification, by the presence of a vitreomacular traction (VMT), and according to their size, as small (less than 250mm), medium (250mm-400mm) and large (more than 400mm), measured on SD-OCT horizontal scans. Results: Baseline characteristics were: men/women ratio of 29/71, mean age of 71,1 ± 7 years (52-89). A vitreomacular traction was present in 22% of eyes. The mean preoperative diameter of holes was not significantly different according to the presence of a VMT: 339 ± 134mm in eyes with VMT and 423 ± 191mm in eyes without VMT (p=0,057).The distribution of FTMH according to size and presence of a VMT was not significantly different (p=0,69): respectively 19%, 32% and 49% of small, medium and large FTMH in the group with VMT and 27%, 32% and 41% in the group without VMT. In our series, 6% of patients presented with small FTMH and VMT and 13% of patient with FTMH less than 400mm and VMT. Conclusions: In our series of 100 FTMH, there was no significant relation between the size of hole and the presence of a vitreomacular traction, despite the supposed role of the vitreous traction in FTMH pathogenesis. Only 13% of FTMH had a VMT and a diameter less than 400mm, for which vitreolysis has been proposed as possible treatment. ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts Commercial Relationships: Elise Philippakis, None; Franck Amouyal, None; Aude Couturier, None; Elise BoulangerSemama, None; Pascale G. Massin, None; Alain Gaudric, None; Ramin Tadayoni, None Program Number: 1222 Poster Board Number: D0199 Presentation Time: 3:15 PM–5:00 PM Assessment of Anatomical and Functional Outcomes in the Ocriplasmin for Vitreomacular Traction Intravitreal Injection Decisions (OVIID 1) Trial Ramin Tadayoni1, Danyel Carr2, Zhenming Zhao2, Aaron Osborne2. 1 Ophthalmology, Hopital Lariboisiere-Ophthalmologie, Paris, France; 2 Alcon Research Ltd., Fort Worth, TX. Purpose: Analysis of pooled data from 2 studies assessing the safety and clinical efficacy of ocriplasmin (clinicaltrials.gov ID NCT00781859 and NCT00798317, respectively) showed that the effect of ocriplasmin in inducing resolution of vitreomacular adhesion (VMA) is greatest in patients without epiretinal membrane (ERM) and in patients with a VMA diameter of <1500 μm. The OVIID 1 study (NCT02035748) has been designed to observe the anatomical and functional outcomes in VMT/sVMA patients treated with ocriplasmin. Methods: Phase IV, multi-center, prospective, single-arm study in which patients diagnosed with VMT/sVMA are treated with ocriplasmin 125 μg by intravitreal injection. The study population includes adult subjects diagnosed with VMT/ sVMA, with evidence of focal VMT visible on spectral domainoptical coherence tomography (SD-OCT). Key exclusion criteria include presence of ERM over the macula at baseline, broad VMT/ VMA (>1500 μm) at baseline, or macular hole (MH) >400 mm in diameter in study eye. The study includes a total of 6 planned visits (including screening visit): During visit 1, subjects receive a single intravitreal injection of ocriplasmin, as per the country’s product label. Subsequent visits occur on Days 7, 28, 90, and 180. Safety is assessed through the use of reported adverse events and ophthalmologic examinations. Results: The study is planned to enroll 400 patients from about 90 centers in 11 countries across Europe and Canada. The primary efficacy endpoint is the proportion of patients with nonsurgical resolution of focal VMT/sVMA at Day 28, as determined by central reading center evaluation of SD-OCT data. Secondary and exploratory endpoints include changes in best-corrected visual acuity, proportion of subjects with closure of macular hole, changes in metamorphopsia, and visual function assessment (Table 1). Side effects are also monitored based on clinical information and high resolution SD-OCT of the macula and optic nerve head. Conclusions: The systematic and standardized collection and evaluation of data on the use of ocriplasmin in different countries will contribute to the characterization of appropriate patients for ocriplasmin treatment, and provide additional insights into its safety profile. Table 1 Secondary and Exploratory Endpoints Commercial Relationships: Ramin Tadayoni, None; Danyel Carr, Alcon Research Ltd. (E); Zhenming Zhao, Alcon Research Ltd. (E); Aaron Osborne, Alcon Research Ltd. (E) Clinical Trial: NCT00781859 Program Number: 1223 Poster Board Number: D0200 Presentation Time: 3:15 PM–5:00 PM Ocular Coherence Tomographic Findings in Patients with Vitreomacular Traction Treated with Pneumatic Vitreolysis, Intravitreal Ocriplasmin, or Vitrectomy with Membrane Peeling Gina Yu1, Jorge G. Arroyo1, Kyle V. Marra2. 1Surgery Ophthalmology, Beth Israel Deaconess Medical Center, Boston, MA; 2 University of California, San Diego School of Medicine, San Diego, CA. Purpose: To evaluate the resolution rate of vitreomacular traction (VMT) after receiving one of the following treatments, as compared to intravitreal placebo (control): (1) in-office intraocular C3F8 gas injection (pneumatic vitreolysis (PV)), (2) intravitreal ocriplasmin (IVO), or (3) pars plana vitrectomy with membrane peeling (PPV) Methods: This review retrospectively analyzed 33 medical records (n=35 eyes) from VMT patients who underwent PV, IVO, PPV, or a control injection. All treatments were administered by a single surgeon at Beth Israel Deaconess Medical Center (BIDMC). PV patients received an injection of 0.3 mL of C3F8 gas and instructed to face down 15 minutes per hour while awake for 48 hours. IVO patients had an injection of Jetrea 125 ug per the package insert guidelines. PPV patients had vitrectomy with epiretinal and internal limiting membrane (ERM & ILM) peeling. Control patients received injections of anti-VEGF for age-related macular degeneration. The primary outcome measure was VMT resolution as established by optical coherence tomography (OCT) at day 28. The visual acuity (VA) at month 6, the OCT-measured central foveal thickness (CFT: distance between ILM and retinal pigment epithelium at fovea) at days 0 and 28, and resulting complications were recorded. Results: Zero out of 10 control (0%), 3 out of 7 IVO (42.9%; p=0.10), 7 out of 8 PV (87.5%; p<0.01) and 10 out of 10 PPV patients (100%; p<0.01) experienced VMT resolution at day 28. A third of IVO (33.3%) and PPV (33.3%) patients and a majority of PV patients (80%) had VA improvement. Difference in CFT before and after treatment was not significant in any treatment group (PV: p=0.10, IVO: p=0.07, and PPV p=0.50). No PV, 1 IVO (33.3%), and 3 PPV (33.3%) patients developed worse VA. No patients developed retinal tears or detachment. One PV (12.5%) and no IVO and PPV patients developed a macular hole. Conclusions: PV effectively provided VMT release compared to control and had a higher rate of release compared to IVO. PV also ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts had the highest rate of VA improvement. Both PV and PPV had statistically significantly higher rates of VMT resolution than control but IVO did not. This study suggests PV could provide a readily accessible and minimally invasive alternative to PPV and IVO, but future randomized, controlled studies to compare efficacies is necessary. Commercial Relationships: Gina Yu, None; Jorge G. Arroyo, None; Kyle V. Marra, None Program Number: 1224 Poster Board Number: D0201 Presentation Time: 3:15 PM–5:00 PM Clinical Results of Ocriplasmin For Symptomatic Vitreomacular Traction Syndrome Anuj Chawla, Jorge Fortun. Ophthalmology, Bascom Palmer Eye Institute, West Palm Beach, FL. Purpose: To evaluate the clinical response of ocriplasmin for treatment of vitreomacular traction syndrome and determine anatomic and patient characteristics to stratify potential response to treatment. The MIVI-TRUST trials trials were two, parallel, phase III randomized control trials comparing the effectiveness of an ocriplasmin injection to a placebo saline injection in the treatment of symptomatic vitreomacular adhesion. The trials also determined certain positive predictive factors. These include age less than 65 years of age, absence of epiretinal membrane (ERM), phakic lens status, and adhesion <1500 um. The purpose of this study was to evaluate the effectiveness of ocriplasmin in the clinical setting, and evaluate anatomic changes that occur post injection using spectral domain OCT. Methods: This is a retrospective case series of 35 consecutive patients who received ocriplasmin for symptomatic vitreomacular traction syndrome. OCT was used to determine if the vitreomacular traction was released within 30 days of injection. Pre and post injection best corrected Snellen visual acuity was measured and converted to logmar values. The age of the patient, presence of ERM, lens status, and size of the adhesion were documented. Anatomic changes seen on OCT were also recorded. Results: 35 patients received ocriplasmin for symptomatic vitreomacular traction. 15 of these patients had release of the vitreomacular traction by day 28. Of the 15 patients that demonstrated release of the vitreomacular traction, 12 had 3 or more positive predictive factors (age <65, absence of ERM, phakia, and adhesion less than 1500 um). The average change in visual acuity when converted to logmar is 0.0367. Conclusions: Patient treated with ocriplasmin for symptomatic vitreomacular traction experienced release in 15 out of 35 injections (42.8%). Of the 15 patients that had a postive response 12 (80%) had 3 or more positive predictive factors. Overall there was an improvement in visual acuity, with a logmar value of 0.0367. Anatomic changes seen after injection include cystoid macular edema, persistent sub-retinal fluid, and inner segment - outer segment junction changes. These results support the use of ocriplasmin for sVMA and show an improved response rate compared to the MIVITRUST trials. Commercial Relationships: Anuj Chawla, None; Jorge Fortun, None Program Number: 1225 Poster Board Number: D0202 Presentation Time: 3:15 PM–5:00 PM Comparison of surgery, intravitreal ocriplasmin and observation in symtomatic vitreomacular traction syndrome Saba A. Alreshaid. vitro retina division, king khaled eye especialist hospita, Riyadh, Saudi Arabia. Purpose: To compares the effects of pars plana vitrectomy and intravitreal injection of ocriplasmin with observation in symtpmatic VMT Methods: retrospective study of patients who had symtomatic VMT . VMT was diagnosed by spectral domain optical coherence tomography . Main outcome measures included best-corrected visual acuity and VMT status (released vs not released) at baseline and the last follow-up. Results: Total of 51 eyes of 50 patients. 11 eyes in surgical group, 8 eyes in ocriplasmin group and 32 eyes in observation group. The mean ± SD follow up in surgical, ocriplasmin and observation groups were 10.27 ± 4.63 months, 3.87 ± 2.66 months and 6.27 ± 2.29 months, respectively. Baseline visual acuity (logMAR) in surgical, ocriplasmin and observation groups was 0.81 ± 0.24 (Snellen equivalent 20/125), 0.53 ± 0.29 (20/70) and 0.58 ± 0.25 (20/70), respectively. Visual acuity (logMAR) at the last visit in surgical, ocriplasmin and observation groups was 0.64 ± 0.26 (20/80), 0.52 ± 0.29 (20/70) and 0.57 ± 0.28 (20/70), respectively. The change in visual acuity between baseline and the last visit was significant in the surgical group (p=0.041) and was non-significant in the ocriplasmin (p=0.40) and observation (p=0.62) groups. At the last visit, VMT was released in all eyes (100%) in the surgical group, in 5 of 8 eyes (62.5%) in the ocriplasmin group and in 10 of 32 eyes (31.2%) in the observation group and was statistically significant in VMT release between surgery vs observation (P=0.00008) and surgery vs ocriplasmin (p=0.027) however was not sginificant between ocriplasmin and observation (p=0.1031). one case had lamellar hole after surgery, worsening of BCVA in one case after ocriplasmin injection and two in the observation group. Conclusions: Surgical intervention results in complete release of VMT with improvement in visual acuity. Intravitreal pharmacotherapy and observation have similar rates of VMT release with little change in visual acuity Commercial Relationships: Saba A. Alreshaid, None Program Number: 1226 Poster Board Number: D0203 Presentation Time: 3:15 PM–5:00 PM The Prevalence of Vitreomacular Adhesion in Patients 40 Years and Older- VAST Study Julie Rodman1, Diana Shechtman1, Jay Haynie2, Larry Alexander3, Leo Semes4, William Jones6, Steven Ferrucci5, Ava K. Bittner1, Murray Ocular Oncology and Retina7, Schaeffer Eye Center8. 1 Optometry, Nova Southeastern University, Fort Lauderdale, FL; 2 Retina and Macula Specialists, Tacoma, WA; 3Not Applicable, McKinney, TX; 4Optometry, UAB School of Optometry, Birmingham, AL; 5Sepulveda VAMC, Sepulveda, CA; 6Jones Eye Care, Albuquerque, NM; 7Murray Ocular Oncology, Miami, FL; 8 Schaeffer Eye Center, Birmingham, AL. Purpose: A prospective, cross-sectional study was performed to determine the prevalence of vitreomacular adhesion (VMA) in a diverse group of subjects over 40 years of age. Secondary analysis included correlation between VMA and gender, ethnicity, and refractive error. Methods: Preliminary findings for this study include data from a subset of 1475 eyes of 760 subjects (60.3% females) with a mean age of 57 years (range 40-91; SD 9.4). The refractive status indicated that 6.98% were emmetropes, 32% were myopes, and 61% were hyperopes. For subjects reporting ethnicity, 45.7% were white, 35.6% were black, 12.5% were Hispanic, 6.2% were Asian and/or mixed decent. Subjects were classified into groups by 10-year age categories (e.g., 40-49 years). A comprehensive eye examination, including medical history, amsler grid testing, ophthalmoscopy and Spectral Domain Optical Coherence Tomography (SD-OCT) was performed ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts on each subject. The status of the posterior vitreoretinal interface was evaluated by a team of independent, masked readers, who determined the presence or absence of VMA on SD-OCT. Classification was done according to the rubric established by “The International Vitreomacular Traction Study (IVTS) Group.” Results: Vitreomacular adhesion was present in 40.6% of eyes. When comparing age categories, VMA was most prevalent in the 50-59 year old age group (35.56%). With advancing age, the percentage of patients with VMA decreases (3.34% in patients 80-95 years of age). Prevalence of VMA was associated with ethnicity, as patients of Afro-American descent were less likely to have VMA than Caucasians (p=0.0094). Neither myopic or hyperopic (p=0.2819) refractive error nor gender (p=0.145) seemed to play a significant role in the prevalence of VMA. Data collection is ongoing to increase the sample size, especially in eyes with various maculopathies; those findings will also be analyzed and presented. Conclusions: Vitreomacular adhesion was present in more than a third of eyes that represented a wide range of demographic and ocular characteristics. Patients who were of older age and/or Afro-American descent were significantly less likely to have VMA. Commercial Relationships: Julie Rodman, Carl Zeiss (F), Optovue (F), Thrombogenics (F); Diana Shechtman, Carl Zeiss (F), Nova Southeastern University (F), Optovue (F), Thrombogenics (F); Jay Haynie, None; Larry Alexander, None; Leo Semes, None; William Jones, None; Steven Ferrucci, None; Ava K. Bittner, None; Murray Ocular Oncology and Retina, None; Schaeffer Eye Center, None Support: Nova Southeastern University Health Professions Research Grant, Nova Southeastern University Presidential Grant Clinical Trial: NCT02160340 Program Number: 1227 Poster Board Number: D0204 Presentation Time: 3:15 PM–5:00 PM Effect of intravitreal Ranibizumab injections on Vitreomacular interface in patients with Age Related Wet Macular Degeneration(AMD) Harbhajan Kaur Arora, Seena Nambiar, Manju Chandran, Geeta Menon. Ophthalmology, Frimley Park Hospital, Surrey,United Kindom, Camberley, United Kingdom. Purpose: To study the effect of intravitreal Ranibizumab injections on Vitreomacular interface in patients with Age Related Wet Macular Degeneration(AMD) Methods: We retrospectively analysed medical records and Optical coherent tomography (OCT ) scans of 27 consecutive patients (27 eyes) diagnosed with exudative AMD and receiving intravitreal Ranibizumab. The treatment consisted of 3 consecutive injections of Ranibizumab 0.5mg/0.05ml and then treated if necessary, depending on the retreatment criterion. Best corrected visual acuity (BCVA) (ETDRS),Central macular thickness (CMT), size of Vitreomacular adhesion/ traction (VMA/VMT), number of injections given were recorded and analysed at 0,3,6 and 12 months. Results: The mean age at presentation was 80yrs. At the end of one year mean number of injections given were 6.8. Mean BCVA (ETDRS) letters at baseline was 57.88 and showed a statistically significant improvement at 12 months by 7.12 letters (p=0.044828). Visual acuity was improved or stabilized in 22 out of 27 eyes (81%) . Baseline CMT was 334.08 micron and showed a significant reduction by 60.99 micron (p=0.018003). Mean size of VMA/VMT at baseline was 1229 micron and 1062 micron after one year. Change in size of VMA/VMT was not statistically significant (p=0.54746).During the study period out of 27 eye only 3 had spontaneous resolution 1 ( David A et al ) of VMA/VMT. Conclusions: Although few cases of spontaneous resolution of VMT after Ranibizumab injection have been reported in literature2,3 (Rouvas A et al 2008, 2013), our results with small number of patients concluded that there was no significant change in vitreomacular interface before or after getting Ranibizumab. Further prospective studies with larger group of patients receiving different kinds of anti-vascular endothelial growth factor (antiVEGF) injections are needed to fully evaluate the effect of different kind of anti-VEGFs on Vitreomacular interface. Commercial Relationships: Harbhajan Kaur Arora, None; Seena Nambiar, None; Manju Chandran, None; Geeta Menon, Alcon (F), Allergan (F), Beyer (F), Novartis (F), Research Grant (F), Travel Grant (F) Program Number: 1228 Poster Board Number: D0205 Presentation Time: 3:15 PM–5:00 PM Optical coherence tomography findings of the vitreoretinal interface in fellow eyes of patients with vitreomacular traction or full thickness macular holes Julian E. Klaas, Sophie Burzer, Sophia Abraham, Nikolaus Feucht, Chris Lohmann, Mathias M. Maier. Ophthalmology, Rechts der Isar, TUM, Munich, Germany. Purpose: We performed a retrospective, observational clinical study to evaluate the vitreoretinal interface (VRI) in fellow eyes of patients with vitreomacular traction (VMT) or full thickness macular hole (FTMH) based on spectral domain optical coherence tomography (SD-OCT) examination. Methods: The VRI in fellow eyes of 46 patients with VMT, 12 of which had concomitant FTMH, and the VRI of 34 patients with FTMH with complete resolution of VMT was reviewed by spectral domain optical coherence tomography (Spectralis HRA+OCT, Heidelberg Engineering, Germany) for the presence of vitreomacular adhesion (VMA), VMT, and the formation of a FTMH, lamellar macular hole (LMH) or epiretinal membrane (ERM). Patients underwent complete ophthalmic evaluation, including SD-OCT at baseline and follow-up visits and were included into the VMT-group or the FTMH-group. To classify the morphology of the VRI, we used the International Vitreomacular Traction Study Classification System by Duker et al. (Ophthalmology, 2013), evaluating the baseline SDOCT data for significant classification parameters, including size of vitreomacular adhesion, macular thickness and volume and structural changes of retinal layers. Results: Of 46 eyes with VMT, 16 (34,78 %) fellow eyes also showed evidence of VMT. One of the 16 had FTMH with persisting VMT. 10 (21,74%) showed formation of an ERM, of which 2 (4,26 %) demonstrated a LMH. With 8 patients (17,39 %) showing evidence of VMA, and 13 patients (28,26 %) with an unremarkable VRI, 21 fellow eyes (45,65 %) showed no pathological morphology. With regards to the 34 patients who had FTMH with complete resolution of VMT, 7 VMAs taken together with 18 unremarkable OCTs resulted in 73,53 % of fellow eyes showing a physiological VRI. 2 fellow eyes (5,88 %) demonstrated FTMHs without VMT, and 3 (8,82 %) in turn demonstrated VMT. 5 eyes (14,71 %) revealed an ERM, 2 of them concurrent with a LMH. Conclusions: Our SD-OCT-based retrospective review showed that fellow eyes of patients with VMT or FTMH were at increased risk of demonstrating pathological changes in the morphology of the VRI. Commercial Relationships: Julian E. Klaas, None; Sophie Burzer, None; Sophia Abraham, None; Nikolaus Feucht, None; Chris Lohmann, None; Mathias M. Maier, None ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts Program Number: 1229 Poster Board Number: D0206 Presentation Time: 3:15 PM–5:00 PM Jetrea® (Ocriplasmin) as a treatment option for symptomatic vitreomacular traction with or without macular hole (≤400 mm) in comparison to transconjunctival vitrectomy Mathias M. Maier, Sophia Abraham, Christiane Frank, Nikolaus Feucht, Chris P Lohmann. Augenklinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany. Purpose: To evaluate the resolution rate of vitreomacular traction (<1500 mm) and the closure rate of macular holes (≤400mm) after therapy with intravitreal Jetrea® (Ocriplasmin) compared to transconjunctival vitrectomy in patients with symptomatic vitreomacular traction with or without macular hole (≤400 mm) in a clinical setting. Methods: We prospectively examined 21 eyes of 21 patients with symptomatic vitreomacular traction (VMT) with or without full thickness macular hole (FTMH), who underwent intravitreal injection of 0,1ml Jetrea®. And we retrospectively reviewed 18 eyes of 18 patients with vitreomacular traction with or without FTMH who underwent 23-gauge vitrectomy. In both groups visual acuity and SD-OCT ultrastructural parameters were measured before injection/ vitrectomy. Resolution of VMT, closure of macular holes, visual acuity and SD-OCT ultrastructural parameters were evaluated again in both groups 1, 3 and 6 months after treatment. Results: VMT resolved in 17 of 21 eyes treated with Ocriplasmin after 6 month (80.95%) as compared to 100% of eyes who underwent vitrectomy. In the Ocriplasmin group 5 eyes initially presented FTMH with VMT (23.80%), 2 of them were closed 1 month after Ocriplasmin treatment. The remaining 3 had vitrectomy with ILMpeeling and gas tamponade and closed thereafter. All FTMH were closed after 6 month. Best corrected visual acuity was 0.38±0.23 Log MAR at baseline, improving to 0.34±0.24 Log MAR at 6 months after ocriplasmin treatment. Best corrected visual acuity in the vitrectomy group improved from 0.55±0.29 Log MAR before operation to 0.53±0.51 Log MAR at 6 months postoperative. Foveal thickness was 355.95±114.53 mm at baseline, reducing to 277.77±40.26 mm at 6 months after ocriplasmin treatment. Foveal thickness of eyes who underwent vitrectomy was 494.61±126.02 mm at baseline, reducing to 330.2±88.85 mm at 6 months postoperative. Conclusions: In the ongoing study, a large percentage of resolution of vitreomacular traction after intravitreal injection of Ocriplasmin was observed, and 2 out of 5 macular holes closed. This was further associated by an improvement of visual acuity and reduction of foveal thickness. Commercial Relationships: Mathias M. Maier, None; Sophia Abraham, None; Christiane Frank, None; Nikolaus Feucht, None; Chris P Lohmann, None Program Number: 1230 Poster Board Number: D0207 Presentation Time: 3:15 PM–5:00 PM 1 year outcomes of intravitreal octriplasmin for symptomatic vitreomacular traction Yue Zhao1, 2, Yuji Itoh2, Justis P. Ehlers2, Sunil K. Srivastava2, Rishi P. Singh2, Peter K. Kaiser2. 1Cleveland Clinic Lerner College of Medicine, Cleveland, OH; 2Cole Eye Institute, Cleveland Clinic Foundation, Cleveland, OH. Purpose: Intravitreal ocriplasmin for symptomatic vitreomacular adhesion (sVMA) permits early intervention and avoids surgical risk. Initial reports describe visual and anatomic changes in the first month after injection. We aim to follow these changes for at least one year after treatment. Methods: We assessed effect of ocriplasmin 0.125ug in a retrospective case series of Cole Eye Institute patients with sVMA. Eyes were categorized into two groups: eyes treated with ocriplasmin alone, and eyes requiring further vitrectomy (V). Ocriplasmin alone eyes were further subdivided into responders (R), defined by sVMA resolution, and non-responders (NR), defined by lack of resolution. Primary outcome was incidence of sVMA resolution. Secondary outcomes included changes in visual acuity (VA), changes in optical coherence tomography (OCT) measurements, and incidence of vitrectomy in eyes followed for at least one year. Comparisons were analyzed using Wilcoxan tests and presented as count/percentage or median/interquartile range. Results: Of 19 ocriplasmin treated eyes, 9 (47%) demonstrated OCT confirmed sVMA release. Median time to resolution was 7 days. sVMA did not resolve in 10 eyes, of which 6 (32%) eyes required further vitrectomy. 14/19 (74%) eyes were followed for a minimum of one year: 8 ocriplasmin alone (5 R, 3 NR) and 6 vitrectomy (V) eyes. Baseline VA was significantly lower in eyes treated with ocriplasmin alone (logmar 0.29, 0.18-0.42) compared to vitrectomy eyes (0.40, 0.32-0.54, p=0.03). Final VA was 0.20 in ocriplasmin alone and 0.24 in vitrectomy eyes (p=0.84). In ocriplasmin alone eyes, VA improved by -0.14 in both responder and non-responder eyes. Time to best VA was 142 days in responders and 129 days in non-responders (p = 0.55). OCT central subfield thickness was thinner in the ocriplasmin-alone eyes than in the vitrectomy eyes at baseline (267um vs. 390um, p=0.05) and follow-up (227um vs. 309.5um, p=0.03). Transient subretinal fluid was noted in 7/14 (50%) eyes. 6 eyes (43%) had macular holes at baseline, 3 resolved with ocriplasmin and 3 required vitrectomy. Conclusions: This study ocriplasmin outcomes after one year follow up. Visual acuity improved over several months in both ocriplasmin responders and non-responders, and final visual acuity was similar across groups. OCT measurements differed at baseline and at final follow-up in ocriplasmin eyes when compared to those requiring vitrectomy. Commercial Relationships: Yue Zhao, None; Yuji Itoh, None; Justis P. Ehlers, Leica (C), Thrombogenics (C), Thrombogenics (F), Zeiss (C); Sunil K. Srivastava, Allergan (C), Bausch and Lomb (C), Leica (C); Rishi P. Singh, Alcon (C), Alcon (C), Thrombogenics (C), Thrombogenics (C); Peter K. Kaiser, Alcon (C), Allegro (C), Novartis (C), Thrombogenics (C) Program Number: 1231 Poster Board Number: D0208 Presentation Time: 3:15 PM–5:00 PM THE INCIDENCE OF PREVIOUS POSTERIOR VITREOUS DETACHEMENT IN PATIENTS UNDERGOING PARS PLANA VITRECTOMY FOR RESOLUTION OF SYMPTOMATIC VITREOUS FLOATERS Ian Kirchner, David Ellenberg, Philip H. Scharper. Ophthalmology, Krieger Eye Institute, Baltimore, MD. Purpose: To evaluate if the presence or absence of a posterior vitreous detachment (PVD) is significant with regards to the symptoms of vitreous floaters and patients decision to undergo pars plana vitrectomy (PPV) for removal of vitreous floaters. Methods: A retrospective review of all patients who underwent PPV from 2013 through October 2014 was initially performed. All patients with current or history of retina or vitreous pathology including vitreous hemorrhage, macular hole, history of uveitis, history of retinal detachment, previous retina surgery or other concurrent retinal pathology were excluded from the study. All patients undergoing PPV strictly for symptomatic floaters were included. Standard 23G PPV (Constellation, Alcon, TX) was performed on all patients. The posterior hyaloid was visualized intraoperativly with intravitreal triamcinolone. All operative reports were reviewed to evaluate ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts whether there was a previous PVD preoperatively or if the PVD was created surgically. Results: 157 eyes of 140 patients were initially identified. 18 eyes were excluded for vitreous hemorrhage, 18 eyes for to previous retina surgery, 7 eyes for previous uveitis, 5 eyes for macular hole, 38 eyes for retained lens material or a dislocated IOL, 5 eyes for endophthalmitis, 1 eye for asteroid hyalosis, and 1 eye for hemorrhagic choroidal detachment. 64 eyes met the inclusion criteria and underwent PPV strictly for resolution of symptomatic floaters. An additional 6 eyes were then excluded because there was not mention of the presence or absence of a PVD in the operative report. 27/58 eyes (47%) already had a PVD prior to surgery confirmed intraoperatively with triamcinolone. 31/58 eyes (53%) did not have a previous PVD and a surgical PVD was created. Conclusions: While it is often thought that a PVD is responsible for symptomatic vitreous floaters, our study shows that the presence of a PVD is not necessarily related to the severity of symptoms or patients’ decision to undergo surgical removal of floaters. In our study, more than half of the patients who choose to undergo PPV for symptomatic floaters did not have PVD pre-operatively. It is likely that location of the vitreous opacities and density of the vitreous syneresis has a greater significance than the presence or absence of a PVD. Commercial Relationships: Ian Kirchner, None; David Ellenberg, None; Philip H. Scharper, None Program Number: 1232 Poster Board Number: D0209 Presentation Time: 3:15 PM–5:00 PM Enhanced High-density Line Spectral-domain Optical Coherence Tomography Imaging of Vitreoretinal Interface. Description of Selected Cases Yu Cheol Kim1, 2, Mariana Harasawa2, Guillermo S. Villanueva2, 2, Frank S. Siringo2, 2, Miguel Paciuc-Beja2, 2, Jeffrey Olson2, Naresh Mandava2, Hugo Quiroz-Mercado2, 2. 1Department of Ophthalmology, Keimyung Univ/Dongsan Medical Ctr, Daegu, Korea (the Republic of); 2Ophthalmology, University of Colorado, School of Medicine, Denver, CO. Purpose: We introduce a new method to observe the morphologic feature of the vitreous with spectral-domain optical coherence tomography (SD-OCT) by evaluating and describing the posterior vitreous structure of various selected cases using Enhanced highdensity (HD) line mode. Methods: This is a descriptive case series of SD-OCT images with Enhanced HD line at Denver Health Medical Center, University of Colorado School of Medicine in 2014. The medical records with ocular images for these patients were analyzed. Results: Enhanced HD line in vitreoretinal mode with SD-OCT offered wide images with well-visible vitreoretinal interface. Posterior precortical vitreous pocket (PPVP) that was often mistaken as posterior vitreous detachment on regular cross line mode was easily identified. Vitreomacular adhesion and traction, absence or presence of connecting channels between PPVP and Cloquet’s canal, liquefied vitreous lacuna, and emulsified oil droplet-layer could be observed. Conclusions: SD-OCT using enhanced HD line in vitreoretinal mode enables clear visualization of the posterior vitreous structure. Commercial Relationships: Yu Cheol Kim, None; Mariana Harasawa, None; Guillermo S. Villanueva, None; Frank S. Siringo, None; Miguel Paciuc-Beja, None; Jeffrey Olson, None; Naresh Mandava, None; Hugo Quiroz-Mercado, None Program Number: 1233 Poster Board Number: D0210 Presentation Time: 3:15 PM–5:00 PM The processes of postoperative macular hole closure after inverted internal limiting membrane flap technique.The processes of postoperative macular hole closure after inverted internal limiting membrane flap technique Hirano Masayuki1, Yuki Morizane1, Tetsuhiro Kawata1, Shuhei Kimura1, Mio Hosokawa1, Yusuke Shiode1, Shinichiro Doi1, Mika Hosogi1, Atsushi Fujiwara2, Fumio Shiraga1. 1Ophthalmology, Okayama university, Okayama city, Japan; 2Okayama Rosai Hospital, Okayama city, Japan. Purpose: To investigate the closure process of refractory macular holes (MHs) after the inverted internal limiting membrane (ILM) flap technique by comparing that of idiopathic MHs after vitrectomy with ILM removal. Methods: Eight eyes of 8 refractory MH patients (2 men and 6 women, mean age 73.7 ± 5.1 years) who underwent the inverted ILM flap technique and 11 eyes of 11 idiopathic MH patients (5 men and 6 women, mean age 67.5 ± 6.7 years) who were treated with vitrectomy and ILM peeling were studied. The inverted ILM flap technique was basically performed according to the report of Michalewska et al (Ophthalmology 2010). In all patients, at the end of the operation, the eyes were replaced with 20% sulfur hexafluoride gas and patients were asked to remain face down for 3 days. The closure processes of MH were imaged using swept source optical coherence tomography (DRI OCT-1, Topcon, Japan) starting from 6 hours after the operation, followed by everyday examination till MH closure was confirmed. Results: The final closure rates of MHs after the initial surgery were 75.0% (6 eyes) in refractory MHs and 100.0% (11 eyes) in idiopathic MHs. The durations required for the closure of refractory MHs were 6 hours for 2 eyes (33.3%), 3 days for 2 eyes (33.3%), and 10 days for 2 eyes (33.3%). On the other hand, the durations required for the closure of idiopathic MHs were 6 hours for 5 eyes (45.4%), 1 day for 3 eyes (27.2%), and 3 days for 3 eyes (27.2%). The mean duration until the closure of refractory MHs was significantly longer than that of idiopathic MHs (106 ± 107.9 hours and 28.9 ± 28.7 hours respectively, p < 0.05, unpaired t-test). In refractory MHs that closed after the initial surgery, the type of MH closure was U-type in all eyes (6 eyes), although the restoration of the ellipsoid zone was observed in 3 eyes (50%). Conclusions: The inverted ILM flap technique is effective to close refractory MHs and aiding the recovery of the macular conformation. The postoperative period of refractory MHs to close was longer than that of idiopathic MHs, possibly due to the differences in the mechanism of MH closure between these MHs. Commercial Relationships: Hirano Masayuki, None; Yuki Morizane, None; Tetsuhiro Kawata, None; Shuhei Kimura, None; Mio Hosokawa, None; Yusuke Shiode, None; Shinichiro Doi, None; Mika Hosogi, None; Atsushi Fujiwara, None; Fumio Shiraga, Alcon Japan (C), Alcon Japan (F), AMO Japan (F), Byer (C), Chuo Sangio Co. (F), Novartis„ÄÄPharma (F), Novertis Pharma (C), Pfizer (F), Santen Pharmaceutical (C), Santen Pharmaceutical (F), Senju Pharmaceutical (F), Topcon Co. (F) Program Number: 1234 Poster Board Number: D0211 Presentation Time: 3:15 PM–5:00 PM Intravitreal gas injection for the treatment of vitreomacular traction syndrome Shelley Day, Jose A. Martinez, Peter A. Nixon, Mark Levitan, Clio A. Harper. Austin Retina Associates, Austin, TX. Purpose: Vitreomacular traction syndrome can cause symptomatic metamorphopsia and decrease in visual acuity. While it is typically ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts treated with vitrectomy surgery or intravitreal ocriplasmin injection, these procedures can be invasive and costly. The purpose of this retrospective, consecutive case series is to evaluate the efficacy of intravitreal gas injection for treatment of symptomatic vitreomacular traction syndrome. Methods: Ten eyes of 10 patients with symptomatic vitreomacular traction on spectral-domain optical coherence tomography (sdOCT) received an intravitreal injection of 0.3 mL of 100% sulfur hexafluoride (SF6) or perfluoropropane (C3F8). The primary outcome was the number of eyes with release of vitreomacular traction on sdOCT at one month after treatment. Secondary outcomes included change in visual acuity and central subfield thickness 1 month after treatment. Results: Six patients (60%) had resolution of vitreomacular traction on sdOCT by one month after injection. Of these, 2 (20%) developed full thickness macular holes. Mean visual acuity at one month improved slightly after injection by 0.09 logMAR units, although this change was not statistically significant (p = 0.20). Central subfield thickness on sdOCT decreased by an average of 46.5 microns after injection (p = 0.002). All eyes with release of vitreomacular traction had pre-treatment vitreomacular adhesion of less than 521 microns. No post-injection complications were noted. Conclusions: Intravitreal injection of expansile SF6 or C3F8 gas is a low-cost and minimally invasive alternative for the treatment of symptomatic vitreomacular traction syndrome. Further study is warranted. Commercial Relationships: Shelley Day, None; Jose A. Martinez, None; Peter A. Nixon, None; Mark Levitan, None; Clio A. Harper, None Program Number: 1235 Poster Board Number: D0212 Presentation Time: 3:15 PM–5:00 PM Spectral domain optical coherence tomography guided facedown posturing versus 1 week facedown posturing after idiopathic full thickness macular hole surgery Kunyong Xu, Eduardo Navajas. Ophthalmology, Queen’s University, Kingston, ON, Canada. Purpose: To compare idiopathic full thickness macular hole (FTMH) closure rates between spectral domain optical coherence tomography (SD-OCT) guided facedown posturing and conventional 1 week facedown posturing. Methods: Consecutive patients who underwent pars plana vitrectomy, membrane peeling with indocyanine green dye, and C3F8 gas tamponade for idiopathic FTMH between July 2013 and September 2014 were included. For the SD-OCT guided group, SDOCT was performed first day after surgery. If the FTMH was closed, the patient could assume any position but lying supine for 1 week. If the FTMH was not closed on the first postoperative day, SD-OCT was performed daily until the FTMH closed or for up to 1 week. If the hole closed or 1 week elapsed, the patient was asked to stop positioning. The control group positioned for 1 week after surgery and had SD-OCT at 1 month to confirm closure. Results: Twenty nine eyes of 28 patients were included, 7 eyes in the SD-OCT guided group and 22 eyes in the control group. The mean follow up for the SD-OCT guided and control group was 118.9 days and 193.5 days, respectively. FTMH closure rate for both the SD-OCT guided and control group was 100%. Mean time for FTMH closure in the SD-OCT group was 1.3 days. There was no statistical difference in postoperative VA at the last visit between the SD-OCT guided group (0.47± 0.25 LogMAR) and control group (0.52 ± 0.40 LogMAR) (p=0.7764). No statistically significant correlation was found between FTMH basal diameter and the VA at the last visit (r=0.36, p=0.0519, Spearman correlation coefficient). Conclusions: This study showed no difference in FTMH closure rates and postoperative VA between SD-OCT guided facedown posturing and conventional 1 week facedown posturing. Commercial Relationships: Kunyong Xu, None; Eduardo Navajas, None Program Number: 1236 Poster Board Number: D0213 Presentation Time: 3:15 PM–5:00 PM Clinical Characteristics and Management of Full Thickness Macular Holes Following Vitrectomy for Vitreomacular Traction Marco Gonzalez, Harry W. Flynn, william smiddy, Christine Bokman. Bascom Palmer Eye Institute, Miami, FL. Purpose: To describe the clinical characteristics and optical coherence tomography (OCT) outcomes for patients undergoing pars plana vitrectomy (PPV) for full thickness macular holes (FTMH) that developed after surgery for symptomatic vitreomacular traction (VMT). Methods: This is a non-comparative, interventional, consecutive case series from January 2007 through February 2014. Patients with comorbid ocular conditions (macular holes, diabetic macular edema, advanced glaucoma, etc) were excluded. Preoperative and postoperative clinical characteristics and OCT features were compared. Results: A total of 4 eyes that developed full thickness macular holes following PPV for VMT were included. The mean age at time of surgery was 70.5 years (range of 56 to 82). Mean best corrected visual acuity prior to vitrectomy was 20/55 (range of 20/30 to 20/200). During initial vitrectomy, internal limiting membrane was peeled in 3 (75%) eyes. No intraoperative macular hole was noted. The average time between initial surgery and identification of the full thickness macular hole was 144 days (range of 44-236 days). After PPV for FTMH, 3 of 4 eyes (75%) achieved macular hole closure. The fourth patient declined further surgery and best corrected visual acuity remained at 20/400. Mean final best corrected visual acuity after successful macular hole repair in 3 eyes was 20/59 (range of 20/25 to 20/400). Conclusions: Postoperative macular hole formation after PPV for VMT is uncommon. FTMHs after PPV for VMT can be successfully repaired with further surgery but visual acuity outcomes are variable. Commercial Relationships: Marco Gonzalez, None; Harry W. Flynn, Almeira (C), Pfizer (C), Santen (C); william smiddy, Alimera (C), Allergan (C); Christine Bokman, None Support: Supported in part by Research to Prevent Blindness New York, NY. Program Number: 1237 Poster Board Number: D0214 Presentation Time: 3:15 PM–5:00 PM Interim Results From INJECT: INvestigation of JETREA in Patients With Confirmed Vitreomacular Traction Peter Stalmans1, Franklin Masin2, Claudio Spera2, Severine Durier2, Lawrence Rasouliyan3. 1Dept Ophthalmology UZLeuven, UZLeuven, Leuven, Belgium; 2Alcon Laboratories Inc., Fort Worth, TX; 3ICON Clinical Research, Barcelona, Spain. Purpose: The safety and clinical efficacy of JETREA (ocriplasmin) have been established in two phase 3 vehicle-controlled clinical studies. However, the long-term effects of ocriplasmin in a realworld setting have not been widely documented in large populations across different countries. The purpose of this study is to characterize baseline characteristics, safety profile, and clinical effectiveness of ocriplasmin in real-world settings across different countries. Methods: Non-interventional, multicenter, prospective study in vitreomacular traction (VMT) patients treated with ocriplasmin. Enrolled patients are followed for 12 months. Frequency and timing ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected]. ARVO 2015 Annual Meeting Abstracts of post-injection visits are at the discretion of the treating physician. Patient baseline characteristics collected include age, race, gender, presence and size of macular hole (MH), presence of ERM, and size of vitreomacular adhesion. Safety assessments include ocular symptoms and adverse events. Results: The interim analysis included 105 patients with available baseline OCT data and at least 28 days of follow-up. The majority of patients were female (62%), white (97%), with a mean age of 72 years (range 46 – 89 years). Most patients presented with VMT without macular hole: 64/105 (61%) with VMT only, and 41/105 (39%) with VMT plus MH. The most frequently reported adverse events were: drug ineffective (n=8), vitreous floaters (n=7), photopsia (n=7), and visual acuity reduced (n=5). Conclusions: Results from this study provide insights into presenting characteristics of patients with VMT and VMT with MH, who receive ocriplasmin in a real world setting, and will contribute to the further characterization of ocriplasmin efficacy, safety profile, and global treatment patterns. Table 1. Demographics and Baseline Characteristics of Study Population. Commercial Relationships: Peter Stalmans, Alcon Laboratories Inc. (C), Alcon Labratories Inc. (C); Franklin Masin, Alcon Laboratories Inc. (E); Claudio Spera, Alon Laboratories Inc. (E); Severine Durier, Alcon Laboratories, Inc. (E); Lawrence Rasouliyan, ICON Clinical Research (C) Clinical Trial: ENCEPP/SDPP/4554 ©2015, Copyright by the Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Go to iovs.org to access the version of record. For permission to reproduce any abstract, contact the ARVO Office at [email protected].