Complications of Laser in situ Keratomileusis
... input to the epithelium of the LASIK flap. This results in a transient abnormality of the flap epithelium associated with punctate epithelial erosions and rose bengal staining. This condition occurs in 1% to 2% of eyes with no evidence of pre-existing dry eye. However, our impression is that it is m ...
... input to the epithelium of the LASIK flap. This results in a transient abnormality of the flap epithelium associated with punctate epithelial erosions and rose bengal staining. This condition occurs in 1% to 2% of eyes with no evidence of pre-existing dry eye. However, our impression is that it is m ...
Optical Quality and Depth-of-field of Eyes Implanted With
... In the present study, total, corneal, and internal aberrations are compared in eyes implanted with aspheric IOLs with retrospective measurements in eyes implanted with spherical IOLs. In vivo measurement of internal aberrations allows assessment of the optical performance of the IOL within the patie ...
... In the present study, total, corneal, and internal aberrations are compared in eyes implanted with aspheric IOLs with retrospective measurements in eyes implanted with spherical IOLs. In vivo measurement of internal aberrations allows assessment of the optical performance of the IOL within the patie ...
Correlation of Serial Scleral and Corneal Pneumatonometry
... by analyzing the raw data using a Bland-Altman plot. The Bland-Altman plot also showed that the average difference between scleral and corneal pneumatonometry measurements appeared consistent over the range of IOPs that we tested. Furthermore, at more clinically relevant levels of IOP, such as mean ...
... by analyzing the raw data using a Bland-Altman plot. The Bland-Altman plot also showed that the average difference between scleral and corneal pneumatonometry measurements appeared consistent over the range of IOPs that we tested. Furthermore, at more clinically relevant levels of IOP, such as mean ...
Effects of Learning on Smooth Pursuit During Transient
... personal computer tone generator for 100 ms as long as movements were free of saccades and the filtered velocity signal remained within a set of amplitude criteria. The upper and lower limit of the criteria applied to the filtered velocity signal were 15.4 and 12.6 deg/s, respectively. These values ...
... personal computer tone generator for 100 ms as long as movements were free of saccades and the filtered velocity signal remained within a set of amplitude criteria. The upper and lower limit of the criteria applied to the filtered velocity signal were 15.4 and 12.6 deg/s, respectively. These values ...
HIGHER STATE EDUCATIONAL INSTITUTION OF UKRAINE
... Preperimetric glaucoma is a term that is sometimes used to denote glaucomatous changes in the optic disc in patients with normal visual fields, as determined by white-on-white perimetry. Since the correct application of this term depends on the sensitivity of the visual function test used, the devel ...
... Preperimetric glaucoma is a term that is sometimes used to denote glaucomatous changes in the optic disc in patients with normal visual fields, as determined by white-on-white perimetry. Since the correct application of this term depends on the sensitivity of the visual function test used, the devel ...
Outcomes of Corneal Spherical Aberration
... of a cataract, contemporary microincisional phacoemulsification and intraocular lens (IOL) implantation has developed into lens-based refractive surgery for those who have developed visually significant cataracts. As a result, increasing visual demands require the surgeon to achieve greater control ...
... of a cataract, contemporary microincisional phacoemulsification and intraocular lens (IOL) implantation has developed into lens-based refractive surgery for those who have developed visually significant cataracts. As a result, increasing visual demands require the surgeon to achieve greater control ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... Focal choroidal hyperfluorescence was interpreted as regional vascular hyperpermeability.[3,5-11] We also believe the same concept as in our study, focal patchy areas of choroidal hyperfluorescence was observed in 85% cases and in all cases the affected areas were located around the leakage point in ...
... Focal choroidal hyperfluorescence was interpreted as regional vascular hyperpermeability.[3,5-11] We also believe the same concept as in our study, focal patchy areas of choroidal hyperfluorescence was observed in 85% cases and in all cases the affected areas were located around the leakage point in ...
The Main Sequence, A Tool for Studying Human Eye
... saccadic amplitude up to about 15 or 20 degrees, as shown in Fig. 3, where it reaches a soft saturation limit and thereafter does not increase as rapidly. The points shown in Figs. 2 and 3 exhibit the extreme values for duration and peak velocity for each saccadic magnitude shown. They are not of se ...
... saccadic amplitude up to about 15 or 20 degrees, as shown in Fig. 3, where it reaches a soft saturation limit and thereafter does not increase as rapidly. The points shown in Figs. 2 and 3 exhibit the extreme values for duration and peak velocity for each saccadic magnitude shown. They are not of se ...
Comparison of Custom Ablation and Conventional
... However, 2 separate studies reporting outcomes using the Alcon platform on eyes with a lower refractive range than ours found statistically significantly better UCVA in the eyes undergoing custom ablation compared with conventional ablation.5,6 Both studies treated significantly less astigmatism tha ...
... However, 2 separate studies reporting outcomes using the Alcon platform on eyes with a lower refractive range than ours found statistically significantly better UCVA in the eyes undergoing custom ablation compared with conventional ablation.5,6 Both studies treated significantly less astigmatism tha ...
Download the Winter 2007 Sightline
... The View from Wilmer Development We hope you enjoy Sightline’s new look. As Wilmer’s raison d’etre is to preserve and restore vision, it seemed only right and appropriate to enhance our magazine with the entire spectrum of color! As this issue’s cover implies, the eye chart is merely a tool by which ...
... The View from Wilmer Development We hope you enjoy Sightline’s new look. As Wilmer’s raison d’etre is to preserve and restore vision, it seemed only right and appropriate to enhance our magazine with the entire spectrum of color! As this issue’s cover implies, the eye chart is merely a tool by which ...
Scleral fixation of dislocated posterior chamber intraocular lenses
... at the planned scleral fixation site. Within the bed of the scleral flap, a 20-gauge sclerotomy was made 1.25 mm posterior to limbus. A clear corneal incision was made approximately one-half clock hour counterclockwise from each fixation sclerotomy within the bed of the scleral flap (Figure 1). A st ...
... at the planned scleral fixation site. Within the bed of the scleral flap, a 20-gauge sclerotomy was made 1.25 mm posterior to limbus. A clear corneal incision was made approximately one-half clock hour counterclockwise from each fixation sclerotomy within the bed of the scleral flap (Figure 1). A st ...
The Corneal Dystrophies Why should we be interested in the
... Congenital, non-progressive “constipated keratocytes” at different levels of the stroma; complex lipids & GAGs in membrane-limited intracytoplasmic ...
... Congenital, non-progressive “constipated keratocytes” at different levels of the stroma; complex lipids & GAGs in membrane-limited intracytoplasmic ...
Panretinal Photocoagulation vs Intravitreous
... Confidential. Do not distribute. Pre-embargo material. In the PRP group, the PRP procedure was initiated at baseline (1200-1600 burns using conventional laser or 1800-2400 burns using an automated pattern delivery system, completed in 1-3 visits). If the neovascularization size or amount increased f ...
... Confidential. Do not distribute. Pre-embargo material. In the PRP group, the PRP procedure was initiated at baseline (1200-1600 burns using conventional laser or 1800-2400 burns using an automated pattern delivery system, completed in 1-3 visits). If the neovascularization size or amount increased f ...
Study of Ocular Aberrations Within a 10 deg Central Visual Field.
... (10x10 degree visual field) of 25 young eyes with an aberrometer based on the ShackHartmann principle. The experiments have resulted in field distribution and the weights of ocular aberrations and gave an idea about complexity of the optical system of the eye. We stressed the importance of taking in ...
... (10x10 degree visual field) of 25 young eyes with an aberrometer based on the ShackHartmann principle. The experiments have resulted in field distribution and the weights of ocular aberrations and gave an idea about complexity of the optical system of the eye. We stressed the importance of taking in ...
The Critical Period for Ocular Dominance Plasticity in the Ferret`s
... Initially, a green image of the surface vascular pattern was taken. The camera was then focused 400 mm below the pial surface, at approximately the depth of layer III. Images of intrinsic signals were acquired using the red filter for illumination, and an identical red filter was positioned between ...
... Initially, a green image of the surface vascular pattern was taken. The camera was then focused 400 mm below the pial surface, at approximately the depth of layer III. Images of intrinsic signals were acquired using the red filter for illumination, and an identical red filter was positioned between ...
Ophthalmic Preparations
... produce the desired therapeutic effect. Ophthalmic solutions usually do not impair or interfere with the vision of the patient. b. Suspensions. Ophthalmic suspensions are also easily placed into the eye. In general, suspensions produce a longer effect than do solutions. Suspensions do have one disad ...
... produce the desired therapeutic effect. Ophthalmic solutions usually do not impair or interfere with the vision of the patient. b. Suspensions. Ophthalmic suspensions are also easily placed into the eye. In general, suspensions produce a longer effect than do solutions. Suspensions do have one disad ...
Utilizing the latest Refractive Technologies in Classik LASIK
... difference between the pre- and postoperative corneal topographic measurements, which is a tangential map. • The ablation is surrounded by a region of approximately zero power, determined with this method described by Mrochen.2 • The decentration of the ablation is determined as a distance of the ce ...
... difference between the pre- and postoperative corneal topographic measurements, which is a tangential map. • The ablation is surrounded by a region of approximately zero power, determined with this method described by Mrochen.2 • The decentration of the ablation is determined as a distance of the ce ...
Lamina cribrosa, angles and blebs
... prelaminar tissue volume (PTV), mean minimum rim width (MRW) and rim volume. Anterior laminar pores were manually marked in AOSLO images and 3D transformed to calculate mean global pore area, elongation and nearest neighbor distance (NND). A MannWhitney rank sum test was used to assess statistical d ...
... prelaminar tissue volume (PTV), mean minimum rim width (MRW) and rim volume. Anterior laminar pores were manually marked in AOSLO images and 3D transformed to calculate mean global pore area, elongation and nearest neighbor distance (NND). A MannWhitney rank sum test was used to assess statistical d ...
Irregular Astigmatism Management
... It is important to consider that most cornea based refractive procedures may increase higher order aberrations while attempting to neutralize high cylinder. Also, the unpredictability of the refractive outcome appears to be the major disadvantage of current laser systems. Complications associated wi ...
... It is important to consider that most cornea based refractive procedures may increase higher order aberrations while attempting to neutralize high cylinder. Also, the unpredictability of the refractive outcome appears to be the major disadvantage of current laser systems. Complications associated wi ...
AQUEOUS HUMOR DYNAMICS AND THE PATHOGENESIS OF
... Ultrafiltration: Once thought to be a major method of aqueous production numerous studies have demonstrated that is likely a minor component in normal eyes. Also a passive process which represents the bulk flow of plasma across fenestrated ciliary capillaries into the ciliary body stroma under the p ...
... Ultrafiltration: Once thought to be a major method of aqueous production numerous studies have demonstrated that is likely a minor component in normal eyes. Also a passive process which represents the bulk flow of plasma across fenestrated ciliary capillaries into the ciliary body stroma under the p ...
Transconjunctival vs. CCI
... Intraoperative conjunctival ballooning (chemosis) is occasionally observed during cataract surgery, especially when a CCI is used.4 When chemosis develops, visualization of the anterior structures of the eye can be compromised. In our study, intraoperative chemosis occurred in 9.8% of eyes in the CC ...
... Intraoperative conjunctival ballooning (chemosis) is occasionally observed during cataract surgery, especially when a CCI is used.4 When chemosis develops, visualization of the anterior structures of the eye can be compromised. In our study, intraoperative chemosis occurred in 9.8% of eyes in the CC ...
Cancer Association of South Africa (CANSA) Fact Sheet
... People with albinism often is sensitive to bright lights and glare, which is usually helped by wearing sunglasses. The differences in the structure of the eye of individual with albinism all lead to a wide range of visual acuity. One the first things a parent often wonders is ‘what will my child see ...
... People with albinism often is sensitive to bright lights and glare, which is usually helped by wearing sunglasses. The differences in the structure of the eye of individual with albinism all lead to a wide range of visual acuity. One the first things a parent often wonders is ‘what will my child see ...
Factors Affecting the Central Corneal Thickness in Nepalese
... Original Article | Godar ST, et al. Factors Affecting Central Corneal Thickness as measured by Goldmann applanation tonometry appears to be small and usually not clinically relevant. However, when CCT is markedly different from the normal, this factor should be taken into account. It is for this re ...
... Original Article | Godar ST, et al. Factors Affecting Central Corneal Thickness as measured by Goldmann applanation tonometry appears to be small and usually not clinically relevant. However, when CCT is markedly different from the normal, this factor should be taken into account. It is for this re ...
Nystagmus1 - Dr. Kumar Saurabh
... Rhythmic jerky movements of the upper eye lid. Conditions when lid nystagmus occurs: Synchronous with vertical nystagmus ...
... Rhythmic jerky movements of the upper eye lid. Conditions when lid nystagmus occurs: Synchronous with vertical nystagmus ...
Intrastromal corneal ring segments and posterior chamber phakic
... METHODS: This study comprised patients with keratoconus who had ICRS implantation followed 6 months later by pIOL implantation with corneal relaxing incisions. The uncorrected (UDVA) and corrected (CDVA) distance visual acuities and residual refractive errors, analyzed using vector analysis, were re ...
... METHODS: This study comprised patients with keratoconus who had ICRS implantation followed 6 months later by pIOL implantation with corneal relaxing incisions. The uncorrected (UDVA) and corrected (CDVA) distance visual acuities and residual refractive errors, analyzed using vector analysis, were re ...