Experimental animal models of induced intraocular hypertension
... pathophysiologic mechanisms still remain uncertain (Wang et al., 2012). Nevertheless, changes in human glaucomatous eyes have been recently described in the trabecular meshwork, including excessive production of extracellular matrix by increased TGF-β2, impaired phagocytosis and increased contractil ...
... pathophysiologic mechanisms still remain uncertain (Wang et al., 2012). Nevertheless, changes in human glaucomatous eyes have been recently described in the trabecular meshwork, including excessive production of extracellular matrix by increased TGF-β2, impaired phagocytosis and increased contractil ...
Factors associated with foveoschisis and foveal detachment
... be more similar to the general high-myopia group in a hospital-based study. Our study revealed that macular chorioretinal atrophy, axial length, and vitreoretinal interface factors were the three independent factors associated with foveoschisis and foveal detachment without macular hole in highly my ...
... be more similar to the general high-myopia group in a hospital-based study. Our study revealed that macular chorioretinal atrophy, axial length, and vitreoretinal interface factors were the three independent factors associated with foveoschisis and foveal detachment without macular hole in highly my ...
Oculomotor Nerve - Dr. Amr Hasan Neurology Clinic
... Usually, there is prominent ptosis also, but this may be difficult to observe if the patient is unconscious with eyes closed. Efforts should be made to arouse the patient at least to the point that there is some effort at eye opening, when the ptosis should be apparent. ...
... Usually, there is prominent ptosis also, but this may be difficult to observe if the patient is unconscious with eyes closed. Efforts should be made to arouse the patient at least to the point that there is some effort at eye opening, when the ptosis should be apparent. ...
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 ...
Statement on Cortical Visual Impairment
... all children who have CVI should be classified as visually impaired and receive the necessary services, regardless of the severity of the degree of CVI or additional disabilities. A child with CVI is distinguished from a child with learning disabilities or developmental disabilities by the followin ...
... all children who have CVI should be classified as visually impaired and receive the necessary services, regardless of the severity of the degree of CVI or additional disabilities. A child with CVI is distinguished from a child with learning disabilities or developmental disabilities by the followin ...
Why Can`t My Child See Even WITH Glasses?
... Deprivation amblyopia develops when a significant physical obstruction prohibits the formation of a clear image on the retina and can occur in one or both eyes. Congenital cataract formation is the most frequent cause of form deprivation amblyopia but other conditions such as ptosis, other media opa ...
... Deprivation amblyopia develops when a significant physical obstruction prohibits the formation of a clear image on the retina and can occur in one or both eyes. Congenital cataract formation is the most frequent cause of form deprivation amblyopia but other conditions such as ptosis, other media opa ...
OPTICAL COHERENCE TOMOGRAPHY FOR RETINAL IMAGING
... Abstract* Glaucoma is the world’s second leading cause of blindness. The disease causes irreversible damage to the retinal ganglion cells, resulting in thinning of the retinal nerve fiber layer (RNFL). When glaucoma is detected at an early stage, further loss of vision can be prevented by treatment. ...
... Abstract* Glaucoma is the world’s second leading cause of blindness. The disease causes irreversible damage to the retinal ganglion cells, resulting in thinning of the retinal nerve fiber layer (RNFL). When glaucoma is detected at an early stage, further loss of vision can be prevented by treatment. ...
school integration for patients with amblyopia
... Out of 43 cases, almost 28% had excellent school results, among which 7,1% had a visual acuity between 0.5-0.6 for both eyes. The rest of 92,8% had an eye with a good visual acuity of 0.9–1 and the other eye with severe or moderate amblyopia. Good school performance was attributed to 48,8%, among wh ...
... Out of 43 cases, almost 28% had excellent school results, among which 7,1% had a visual acuity between 0.5-0.6 for both eyes. The rest of 92,8% had an eye with a good visual acuity of 0.9–1 and the other eye with severe or moderate amblyopia. Good school performance was attributed to 48,8%, among wh ...
Evaluation and Management of Sus
... loss caused by stroke or other central nervous system processes is always bilateral, stable, and homonymous, due to crossing of nasal retinal projections at the optic chiasm. Even in patients with severe field loss caused by cerebral disease, the macula is spared and central vision persists. Visual ...
... loss caused by stroke or other central nervous system processes is always bilateral, stable, and homonymous, due to crossing of nasal retinal projections at the optic chiasm. Even in patients with severe field loss caused by cerebral disease, the macula is spared and central vision persists. Visual ...
Aetiology of Cataract
... following illustrations demonstrate clinical examples of these anatomical entities. ...
... following illustrations demonstrate clinical examples of these anatomical entities. ...
A comparison of Lea Symbol vs ETDRS letter distance visual acuity
... at low acuity levels than for acuity scores within the normal range.4,5 The failure to find a relation between visual acuity level and the difference between Lea Symbols and ETDRS visual acuity in the present study may be related to the relatively narrow range of visual acuity scores (worst acuity w ...
... at low acuity levels than for acuity scores within the normal range.4,5 The failure to find a relation between visual acuity level and the difference between Lea Symbols and ETDRS visual acuity in the present study may be related to the relatively narrow range of visual acuity scores (worst acuity w ...
Measuring IOP in the Unusual Cornea
... MD, in Miami, said that he usually uses a Tono-Pen in the peripheral part of the cornea. He added that although GAT requires a fairly regular corneal shape to accurately determine IOP, the device can be useful in these cases. This is because corneal edema typically results in a mild underestimation ...
... MD, in Miami, said that he usually uses a Tono-Pen in the peripheral part of the cornea. He added that although GAT requires a fairly regular corneal shape to accurately determine IOP, the device can be useful in these cases. This is because corneal edema typically results in a mild underestimation ...
Cataract
... A common visual disorder occurring in adults, that usually does not impair vision. Zones of small opacities may occur, varying in color from gray to brown, yellow, red or blue. The opacities are arranged radially in the outer layers of the lens, leaving the center of the eye clear. It does not inter ...
... A common visual disorder occurring in adults, that usually does not impair vision. Zones of small opacities may occur, varying in color from gray to brown, yellow, red or blue. The opacities are arranged radially in the outer layers of the lens, leaving the center of the eye clear. It does not inter ...
Coloboma - Health Learning Center
... This information was developed by the National Eye Institute to help patients and their families search for general information about coloboma. An eye care professional who has examined the patient’s eyes and is familiar with his or her medical history is the best person to answer specific questions ...
... This information was developed by the National Eye Institute to help patients and their families search for general information about coloboma. An eye care professional who has examined the patient’s eyes and is familiar with his or her medical history is the best person to answer specific questions ...
Lamina cribrosa, angles and blebs
... using swept-source optical coherence tomography (SS-OCT) and 6 raster scan images centered at the optic disc by using spectral domain OCT (Spectralis-OCT) were used to evaluate the presence of focal LC defects and Bruch membrane (BM) opening and retinal pigment epithelium (RPE) beginning, respective ...
... using swept-source optical coherence tomography (SS-OCT) and 6 raster scan images centered at the optic disc by using spectral domain OCT (Spectralis-OCT) were used to evaluate the presence of focal LC defects and Bruch membrane (BM) opening and retinal pigment epithelium (RPE) beginning, respective ...
Document
... from the guidance systems that enable an animal to navigate successfully around the environment, to the detection and identification of predators, prey, and conspecifics. The eyes with which we are most familiar the single-chambered eyes of vertebrates and cephalopod molluscs, and the compound eye ...
... from the guidance systems that enable an animal to navigate successfully around the environment, to the detection and identification of predators, prey, and conspecifics. The eyes with which we are most familiar the single-chambered eyes of vertebrates and cephalopod molluscs, and the compound eye ...
Optically induced anisometropia in kittens.
... experimental manipulations have been used in attempts to simulate the etiology of the more common forms of functional amblyopia. However, despite the fact that anisometropia is considered the most frequent cause of functional amblyopia in humans, 15 the consequences of an artificially induced anisom ...
... experimental manipulations have been used in attempts to simulate the etiology of the more common forms of functional amblyopia. However, despite the fact that anisometropia is considered the most frequent cause of functional amblyopia in humans, 15 the consequences of an artificially induced anisom ...
Secondary Dystonia-Clinical Clues and
... Patients with primary dystonia have normal eye movements. In fact, presence of an eye movement disorder hints towards a secondary form of dystonia. Eye movement dysfunction may be in the form of supranuclear gaze palsy. Patients with a supranuclear gaze palsy may complain of difficulties going downs ...
... Patients with primary dystonia have normal eye movements. In fact, presence of an eye movement disorder hints towards a secondary form of dystonia. Eye movement dysfunction may be in the form of supranuclear gaze palsy. Patients with a supranuclear gaze palsy may complain of difficulties going downs ...
Supraorbital n.
... during the initial stages of the disease, especially if the drug is taken within the first three days of symptoms, and it may have a favorable effect on postherpetic neuralgia.21-23 [Reference 22—Evidence level A, randomized controlled tiral (RCT). Reference 23—Evidence level A, RCT] Additionally, a ...
... during the initial stages of the disease, especially if the drug is taken within the first three days of symptoms, and it may have a favorable effect on postherpetic neuralgia.21-23 [Reference 22—Evidence level A, randomized controlled tiral (RCT). Reference 23—Evidence level A, RCT] Additionally, a ...
Understanding Nystagmus: Diagnosis, Related Disorders
... Any eye condition that affects normal development of “fusion,” usually by affecting vision in at least one eye Amblyopia: poor vision caused by abnormal visual development, due to abnormal visual stimulation ...
... Any eye condition that affects normal development of “fusion,” usually by affecting vision in at least one eye Amblyopia: poor vision caused by abnormal visual development, due to abnormal visual stimulation ...
Local Coverage Determination for Fundus Photography (L33670)
... Hg or there is a difference in cup/disc ratio between the two eyes of 20% or greater. Intraocular pressures are less then 22mm Hg and there is clear fundoscopic evidence of glaucomatous optic nerve damage (e.g., abnormal cup size, thinning or notching of the disc rim, progressive change, disc hemorr ...
... Hg or there is a difference in cup/disc ratio between the two eyes of 20% or greater. Intraocular pressures are less then 22mm Hg and there is clear fundoscopic evidence of glaucomatous optic nerve damage (e.g., abnormal cup size, thinning or notching of the disc rim, progressive change, disc hemorr ...
A Review of Visual Functions and Their Impact on Driving Behavior
... not been validated and were known to have poor performance characteristics (low sensitivity and specificity and high false positive and false negative rates). A large population-based study of licensed drivers applying for renewal (using a clinically validated visual field screening procedure) found ...
... not been validated and were known to have poor performance characteristics (low sensitivity and specificity and high false positive and false negative rates). A large population-based study of licensed drivers applying for renewal (using a clinically validated visual field screening procedure) found ...
Early Postoperative Capsular Block Syndrome
... the preferred and most popular method of anterior capsulotomy.(13-15) CCC helps maintain the integrity of the capsule during the surgery. It also made it possible to insert the PCIOL in the capsular bag securely, and reduce the incidence of IOL malposition. However, complications unique to CCC and i ...
... the preferred and most popular method of anterior capsulotomy.(13-15) CCC helps maintain the integrity of the capsule during the surgery. It also made it possible to insert the PCIOL in the capsular bag securely, and reduce the incidence of IOL malposition. However, complications unique to CCC and i ...
The Royal College of Ophthalmologists
... children with acquired motility abnormalities and binocular vision. Abnormal Neurology: On rare occasions, a child with acquired strabismus or reduced vision may be found to have a primary neurological disorder such as optic nerve glioma, medulloblastoma, craniopharyngioma or hydrocephalus. This is ...
... children with acquired motility abnormalities and binocular vision. Abnormal Neurology: On rare occasions, a child with acquired strabismus or reduced vision may be found to have a primary neurological disorder such as optic nerve glioma, medulloblastoma, craniopharyngioma or hydrocephalus. This is ...
ophthalmohypertension
... glaucoma are among the heaviest diseases of eyes, taking the third place in the world among the reasons leading to irreversible blindness. Necessity of studying of the theme follows from the fact, that patients with this pathology can address to any medical expert. ...
... glaucoma are among the heaviest diseases of eyes, taking the third place in the world among the reasons leading to irreversible blindness. Necessity of studying of the theme follows from the fact, that patients with this pathology can address to any medical expert. ...