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Monthly Archives: May 2014

Albinism, Ocular, Type I (Nettleship–Falls-Type Albinism)

Albinism, Ocular, Type I (Nettleship–Falls-Type Albinism)

Albinism, Ocular, Type I (Nettleship–Falls-Type Albinism) -Hypopigmented fundus characteristics of the disorder. -There is enhanced visualization of the choroidal circulation through the depigmented pigment epithelial layer. -Other findings include a hypopigmented fundus with easily visible choroidal vessels, nystagmus, visual impairment, foveal hypoplasia, and iris transillumination defects. -X-linked disorder where affected males typically manifest abnormal melanin production limited to the eye. Source:  ... Read More »

Multifocal choroiditis

Multifocal choroiditis

Multifocal choroiditis -Whitish lesions in theacute phases and the more hyperpigmented, well-defi ned lesions in the healed stage. -Sometimes they are associated with cells in the posterior vitreous or even an exudative detachment. -Acute choroidal neovascularization or evidence of previous fibrovascular scarring may be seen in some cases. -Optic disc swelling is an important feature of multifocal choroiditis, which distinguishes it from ... Read More »

Best Disease (Best Vitelliform Macular Dystrophy)

Best Disease (Best Vitelliform Macular Dystrophy)

Best Disease (Best Vitelliform Macular Dystrophy) -Unifocal lesion in the central macula. -Accumulation of lipofuscin in the subsensory retinal space,there may be a pseudohypopyon appearance(“pseudohypopyon” stage). -There is may be a zone of atrophy of the pigment epithelium (atrophic stage). -Choroidal neovascularization and hemorrhagic detachment of the macula may occur at each stage. -Abnormal electrooculographic (EOG) findings are universally present in ... Read More »

Familial Exudative Vitreoretinopathy (FEVR)

Familial Exudative Vitreoretinopathy (FEVR)

Familial Exudative Vitreoretinopathy (FEVR) -Dragging of the retinal vasculature from the disc. -There is may be fibrosis and exudation with deposits of lipid into the macula; as well as localized detachment of the retina. -F.A(helpful in making a diagnosis):Peculiar perifoveal capillaries which appear to have blunted endings rather than a network of communicating capillaries. -It is a retinal disorder linked to mutation ... Read More »

Polycythemia Vera

Polycythemia Vera

Polycythemia Vera -Widespread preretinal, intraretinal,and even some subretinal hemorrhages. -Disc edema and microaneurysms are visible on the fluorescein angiogram. -Extensive hyperviscosity from polycythemia vera which predispose to retinal vascular occlusive disease in the fundus. Source:  Ophthalmology Atlas(Photos of cases) Polycythemia Vera Read More »

Chronic Systemic Hypertension with Retinopathy

Chronic Systemic Hypertension with Retinopathy

Chronic Systemic Hypertension with Retinopathy Hypertensive Retinopathy (Case of chronic systemic hypertension with abnormalities of the arteriolar vasculature) -Focal areas of sheathing, vessel caliber irregularities, arterial-venous crossing defects, and a few hemorrhages. -Plaques within the walls of the superotemporal arteriole. -Zone of pallor of the nerve head inferotemporally from ischemic disease and an erythematous capillary change at the superior temporal ... Read More »

Hypertensive Retinopathy

Hypertensive Retinopathy

Hypertensive Retinopathy -Multiple cotton-wool spots,intraretinal hemorrhage, and macular edema. -Visual acuity was 6/60 in both eyes. -Blood pressure of 210/160 mmHg. -Showed improvement after his blood pressure was lowered. -Malignant systemic hypertension may affect the retinal as well as the choroidal circulation and the optic nerve. Source:  Ophthalmology Atlas(Photos of cases) Hypertensive Retinopathy Read More »

Eales’ Disease (Idiopathic Peripheral Vascular Occlusive Disease)

Eales’ Disease (Idiopathic Peripheral Vascular Occlusive Disease)

Eales’ Disease (Idiopathic Peripheral Vascular Occlusive Disease) -Affects the peripheral retinal vasculature. -Leading to retinal non-perfusion or ischemia, preretinal neovascularization and vitreous hemorrhage. -There may be perivasculitis, phlebitis, dilated aneurysmal changes, shunt vessels, and even macular edema. -Capillary non-perfusion and retinal neovascularization demonstrated on the fl uorescein angiogram. Source:  Ophthalmology Atlas(Photos of cases) Eales’ Disease (Idiopathic Peripheral Vascular Occlusive Disease) Read More »

Coats’ Disease (Macular Telangiectasia Type I)

Macular Telangiectasia Type I ( Coats’ Disease )

Coats’ Disease (Macular Telangiectasia Type I) -Zonal area of heavy lipid exudation. -Dilated capillaries and venules, macroaneurysms. -Ischemia peripheral to vascular changes, characteristic of the disorder. -Usually involves males, either in childhood or as adults. -Usually occurs unilaterally in males. Source:  Ophthalmology Atlas(Photos of cases) Coats’ Disease (Macular Telangiectasia Type I) Read More »

Retinal Arteriolar Macroaneurysm with Hourglass Haemorrhage

Retinal Arteriolar Macroaneurysm with Hourglass Haemorrhage

Retinal Arteriolar Macroaneurysm with Hourglass Haemorrhage with more blood in front of and below, rather than within the retina. Source:  Ophthalmology Atlas(Photos of cases) Retinal Arteriolar Macroaneurysm with Hourglass Haemorrhage Read More »

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