Amblyopia Management
... decline to cease by about 12 years of age. The time of onset of the critical period is not uniform for all visual functions, which explains the varied defects seen in amblyopes. The vision deprivation due to media opacities during the first three post natal months produces significant reduction in s ...
... decline to cease by about 12 years of age. The time of onset of the critical period is not uniform for all visual functions, which explains the varied defects seen in amblyopes. The vision deprivation due to media opacities during the first three post natal months produces significant reduction in s ...
Extraocular dorsal signal affects the developmental fate of the optic
... of 22) (Fig. 4D). Mitf was not usually detected, while cRax was always detected (15 out of 15), but less intensely than that found in the untreated optic vesicles (Fig. 4E,F). These observations indicate that without the surrounding tissues the optic vesicle neuroepithelium differentiates into NR bu ...
... of 22) (Fig. 4D). Mitf was not usually detected, while cRax was always detected (15 out of 15), but less intensely than that found in the untreated optic vesicles (Fig. 4E,F). These observations indicate that without the surrounding tissues the optic vesicle neuroepithelium differentiates into NR bu ...
Autofluorescence from the Outer Retina and Subretinal Space
... central serous chorioretinopathy following high-dose corticosteroids given for renal failure complicated by aspergillosis infection of the optic nerve and orbital apex was published anecdotally by Gass in his atlas [20]. The patient had no light perception, and the enucleated eye showed extensive su ...
... central serous chorioretinopathy following high-dose corticosteroids given for renal failure complicated by aspergillosis infection of the optic nerve and orbital apex was published anecdotally by Gass in his atlas [20]. The patient had no light perception, and the enucleated eye showed extensive su ...
Goals and Objectives - International Council of Ophthalmology
... Return exam with fluorescein angiography approximately 2 to 4 weeks after treatment, and then at 4 to 6 weeks and thereafter depending on the clinical and angiographic findings (A:III) Retreatments as indicated Monitoring of monocular near vision (reading/Amsler grid) (A:III) ...
... Return exam with fluorescein angiography approximately 2 to 4 weeks after treatment, and then at 4 to 6 weeks and thereafter depending on the clinical and angiographic findings (A:III) Retreatments as indicated Monitoring of monocular near vision (reading/Amsler grid) (A:III) ...
Effect of Hydration State and Storage Media on Corneal
... Dextran is often used to dehydrate the corneal tissue after storage in eye banks or to prevent swelling in in vitro experiments. Another medical solution is Optisol-GS (Bausch & Lomb, Rochester, NY), one of the most widespread storage media for human corneas in eye banks for preservation before tran ...
... Dextran is often used to dehydrate the corneal tissue after storage in eye banks or to prevent swelling in in vitro experiments. Another medical solution is Optisol-GS (Bausch & Lomb, Rochester, NY), one of the most widespread storage media for human corneas in eye banks for preservation before tran ...
History of ocular straylight measurement: A review
... against the light, halos around bright lights, etc. Straylight also adversely affects visual function tests, such as contrast sensitivity [5], visual field [6–8], and pattern electroretinogram (PERG) [9]. Since the development of a clinical straylight instrument was unsuccessful for a long time, doz ...
... against the light, halos around bright lights, etc. Straylight also adversely affects visual function tests, such as contrast sensitivity [5], visual field [6–8], and pattern electroretinogram (PERG) [9]. Since the development of a clinical straylight instrument was unsuccessful for a long time, doz ...
Nonproliferative retinopathy in diabetes type 2. Initial
... a more detailed scale. It is interesting that these scales and classifications were all based in a variety of complex statistical analyses all focused on the percentage of eyes with progression to proliferative diabetic retinopathy. The ETDRS-based classification of severity and progression of diabeti ...
... a more detailed scale. It is interesting that these scales and classifications were all based in a variety of complex statistical analyses all focused on the percentage of eyes with progression to proliferative diabetic retinopathy. The ETDRS-based classification of severity and progression of diabeti ...
Prediction of early-onset esotropia from components of the
... with strabismus and 69 normal control subjects recruited for the CACS.31 We retrospectively classified 50 of the subjects with esotropia as having early-onset esotropia and 150 subjects as having late-onset esotropia, depending on whether a history was reported of symptoms of (or treatment for) stra ...
... with strabismus and 69 normal control subjects recruited for the CACS.31 We retrospectively classified 50 of the subjects with esotropia as having early-onset esotropia and 150 subjects as having late-onset esotropia, depending on whether a history was reported of symptoms of (or treatment for) stra ...
Ophthalmic Preparations
... The ocusert exposes the patient to a lower amount of the drug leading to reduced side effects The ocusert provide a continuous control of the intra-ocular pressure The ocusert is administered only once per week & this will imporve patient compliance The ocusert contain no preservative so they will b ...
... The ocusert exposes the patient to a lower amount of the drug leading to reduced side effects The ocusert provide a continuous control of the intra-ocular pressure The ocusert is administered only once per week & this will imporve patient compliance The ocusert contain no preservative so they will b ...
Root Eye Dictionary
... "lazy eye." Amblyopia occurs at a young age from disuse when an eye doesn't see well. A child's visual nervous system is still developing until age seven. If during this developmental period, one eye has poorer vision, the "brain wiring" for that eye does not form as strongly as the better eye. This ...
... "lazy eye." Amblyopia occurs at a young age from disuse when an eye doesn't see well. A child's visual nervous system is still developing until age seven. If during this developmental period, one eye has poorer vision, the "brain wiring" for that eye does not form as strongly as the better eye. This ...
AMBLYOPIA IN CHILDREN: THERAPY AND FOLLOW-UP Pia Agervi Thesis for doctoral degree (Ph.D.)
... visual acuity (VA). In the developing world, the possibilities of such postoperative care are limited. Study I was a prospective 2-year follow-up study. We evaluated the refractive and visual outcome after surgery for paediatric cataract in 65 children aged 3 to 15 years. No postoperative correction ...
... visual acuity (VA). In the developing world, the possibilities of such postoperative care are limited. Study I was a prospective 2-year follow-up study. We evaluated the refractive and visual outcome after surgery for paediatric cataract in 65 children aged 3 to 15 years. No postoperative correction ...
Coloboma - Health Learning Center
... cases. To date, however, we still do not know which genes explain most cases of coloboma. For more information about what genes are and what a genetic condition is, please visit the National Library of Medicine’s Genetics Home Reference (http://ghr.nlm.nih.gov/ghr/ page/BrowseGenes). Some researcher ...
... cases. To date, however, we still do not know which genes explain most cases of coloboma. For more information about what genes are and what a genetic condition is, please visit the National Library of Medicine’s Genetics Home Reference (http://ghr.nlm.nih.gov/ghr/ page/BrowseGenes). Some researcher ...
Hyperopia - Diamond Vision
... retina to project anteriorly (idiopathic central serous choroidopathy and choroidal hemangioma from SturgeWeber disease) also induce hyperopia. • Orbital tumors, idiopathicchoroidal folds, and edema can mechanically distort the globe and press the retina anteriorly, thereby causing hyperopia. • Cycl ...
... retina to project anteriorly (idiopathic central serous choroidopathy and choroidal hemangioma from SturgeWeber disease) also induce hyperopia. • Orbital tumors, idiopathicchoroidal folds, and edema can mechanically distort the globe and press the retina anteriorly, thereby causing hyperopia. • Cycl ...
New perspectives on the prevention of myopia
... nese inevitable ? Because of the high prevalence of myopia amongst Chinese in many different environments , it has often been asserted that people of Chinese origin are genetically myopic , . or at least have a genetic propensity to become myopic. . The most influential paper in this respect is that ...
... nese inevitable ? Because of the high prevalence of myopia amongst Chinese in many different environments , it has often been asserted that people of Chinese origin are genetically myopic , . or at least have a genetic propensity to become myopic. . The most influential paper in this respect is that ...
Proprioceptive and Retinal Afference Modify Postsaccadic Ocular Drift
... postsaccadic ocular drift. J. Neurophysiol. 82: 551–563, 1999. Drift of the eyes after saccades produces motion of images on the retina (retinal slip) that degrades visual acuity. In this study, we examined the contributions of proprioceptive and retinal afference to the suppression of postsaccadic ...
... postsaccadic ocular drift. J. Neurophysiol. 82: 551–563, 1999. Drift of the eyes after saccades produces motion of images on the retina (retinal slip) that degrades visual acuity. In this study, we examined the contributions of proprioceptive and retinal afference to the suppression of postsaccadic ...
Freeman May 2012 - American Optometric Association
... in hand. That said, however, we should be cognizant that “… even when neurological disease is not present there is a progressive and gradual loss of some intellectual functions that become evident starting from the seventh or eight decade of life and increasingly evident after the ninth decade.”3 Wi ...
... in hand. That said, however, we should be cognizant that “… even when neurological disease is not present there is a progressive and gradual loss of some intellectual functions that become evident starting from the seventh or eight decade of life and increasingly evident after the ninth decade.”3 Wi ...
New supplementary intraocular lens for refractive enhancement in
... from a flash pack through a fiber-optic cable to the camera. Rotating Scheimpflug photographs (Pentacam, Oculus Optikgeräte GmbH), and in some cases ultrasound biomicroscopy (UBM) images, were taken. Intraocular pressure (IOP) measurement was followed by a retinal examination. ...
... from a flash pack through a fiber-optic cable to the camera. Rotating Scheimpflug photographs (Pentacam, Oculus Optikgeräte GmbH), and in some cases ultrasound biomicroscopy (UBM) images, were taken. Intraocular pressure (IOP) measurement was followed by a retinal examination. ...
Sunday, May 3, 11:15 AM - 1:00 PM Hall B/C Poster Session
... frequency (CFF). Optic disc appearance was normal in 36 eyes (50%) with DON. Orbital imaging using MRI showed apical muscle crowding in all eyes. Forty five eyes had enlargement of 4 rectus muscles, 21 had enlargement of 3 rectus muscles, 5 had enlargement of 2 rectus muscles, and one only involved ...
... frequency (CFF). Optic disc appearance was normal in 36 eyes (50%) with DON. Orbital imaging using MRI showed apical muscle crowding in all eyes. Forty five eyes had enlargement of 4 rectus muscles, 21 had enlargement of 3 rectus muscles, 5 had enlargement of 2 rectus muscles, and one only involved ...
Cone Dystrophy - Kellogg Eye Center
... for visual clarity. Most people are familiar with this test, in which they read letters from a chart while seated at a certain distance. A person with normal visual acuity is said to have 20/20 vision. A person with 20/40 vision can see at a distance of 20 feet what a person with “normal” vision can ...
... for visual clarity. Most people are familiar with this test, in which they read letters from a chart while seated at a certain distance. A person with normal visual acuity is said to have 20/20 vision. A person with 20/40 vision can see at a distance of 20 feet what a person with “normal” vision can ...
Uveitic Glaucoma
... conjunction with increased uveoscleral outflow. However, the IOP may be also increased due to increase in outflow resistance. Several mechanisms are involved in the pathogenesis of glaucoma and this group of diseas‐ es may be divided to open and closed angle. Open angle is the largest group. In open ...
... conjunction with increased uveoscleral outflow. However, the IOP may be also increased due to increase in outflow resistance. Several mechanisms are involved in the pathogenesis of glaucoma and this group of diseas‐ es may be divided to open and closed angle. Open angle is the largest group. In open ...
Stimulation of Baroresponsive Parts of the Nucleus of the Solitary
... these vessels. We recently showed that the baroresponsive part of the nucleus of the solitary tract (NTS) innervates choroidal control parasympathetic preganglionic neurons of SSN in rats. As this projection provides a means by which blood pressure (BP) signals may modulate choroidal blood flow (ChB ...
... these vessels. We recently showed that the baroresponsive part of the nucleus of the solitary tract (NTS) innervates choroidal control parasympathetic preganglionic neurons of SSN in rats. As this projection provides a means by which blood pressure (BP) signals may modulate choroidal blood flow (ChB ...
Local Coverage Determination for Ophthalmology: Posterior
... Fundus photography is not a substitute for an annual dilated examination by a qualified professional (e.g., in diabetic patients). Fundus photographs taken by a non-eye professional and sent (transtelephonically, via internet, or by other means) to a qualified professional for interpretation are cov ...
... Fundus photography is not a substitute for an annual dilated examination by a qualified professional (e.g., in diabetic patients). Fundus photographs taken by a non-eye professional and sent (transtelephonically, via internet, or by other means) to a qualified professional for interpretation are cov ...
biologic corneal bandage
... Histologically, SND is composed of dense irregularly arranged collagen tissue between epithelium and Bowman’s layer or beyond; therefore, patients may develop recurrent corneal erosions or corneal scarring. Surgical removal, phototherapeutic keratectomy (PTK) with or without the use of topical mitom ...
... Histologically, SND is composed of dense irregularly arranged collagen tissue between epithelium and Bowman’s layer or beyond; therefore, patients may develop recurrent corneal erosions or corneal scarring. Surgical removal, phototherapeutic keratectomy (PTK) with or without the use of topical mitom ...
Visual Acuity Is Correlated with the Area of the Foveal Avascular
... were included. The diagnosis of diabetes mellitus was based on the results of fasting blood samples and glycosylated hemoglobin (HbA1c). Only patients with clinical signs of diabetic retinopathy, according to the Early Treatment Diabetic Retinopathy Study (ETDRS) grading criteria,31 were included in ...
... were included. The diagnosis of diabetes mellitus was based on the results of fasting blood samples and glycosylated hemoglobin (HbA1c). Only patients with clinical signs of diabetic retinopathy, according to the Early Treatment Diabetic Retinopathy Study (ETDRS) grading criteria,31 were included in ...
Visual Psychophysics / Physiological Optics
... 2% every 15 minutes and measure the same variables. Results: patients undergoing cataract surgery with accommodative lens placement from January to September 2012. Three patients attended the study, all with placement of accommodative IOLs in both eyes, six eyes were analyzed. The average age was 60 ...
... 2% every 15 minutes and measure the same variables. Results: patients undergoing cataract surgery with accommodative lens placement from January to September 2012. Three patients attended the study, all with placement of accommodative IOLs in both eyes, six eyes were analyzed. The average age was 60 ...
Visual impairment due to intracranial pressure
Spaceflight induced visual impairment is hypothesized to be a result of increased intracranial pressure. The study of visual changes and intracranial pressure (ICP) in astronauts on long-duration flights is a relatively recent topic of interest to Space Medicine professionals. Although reported signs and symptoms have not appeared to be severe enough to cause blindness in the near term, long term consequences of chronically elevated intracranial pressure is unknown.NASA has reported that fifteen long-duration male astronauts (45–55 years of age) have experienced confirmed visual and anatomical changes during or after long-duration flights. Optic disc edema, globe flattening, choroidal folds, hyperopic shifts and an increased intracranial pressure have been documented in these astronauts. Some individuals experienced transient changes post-flight while others have reported persistent changes with varying degrees of severity.Although the exact cause is not known at this time, it is suspected that microgravity-induced cephalad fluid shift and comparable physiological changes play a significant role in these changes. Other contributing factors may include pockets of increased CO2 and an increase in sodium intake. It seems unlikely that resistive or aerobic exercise are contributing factors, but they may be potential countermeasures to reduce intraocular pressure (IOP) or intracranial pressure (ICP) in-flight.