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Monthly Archives: June 2014

Synchisis Scintillans (Cholesterol Bulbi)

Synchisis Scintillans (Cholesterol Bulbi)

Synchisis Scintillans (Cholesterol Bulbi) Cholesterol crystals derived from old vitreous hemorrhage; with PVD crystals settle inferiorly .Rare, unilateral Occurs after blunt or penetrating trauma in blind eyes Crystals sink to bottom of globe because no fixed vitreous framework Source:  Ophthalmology Atlas(Photos of cases) Synchisis Scintillans (Cholesterol Bulbi) Read More »

Behcet’s Disease

Behcet’s Disease

Behcet’s Disease Chronic recurrent multisystem condition characterized by relapsing inflammation and occlusive vasculitis Triad of oral ulcers, genital ulcers, and inflammatory eye disease Diagnosis: Clinical:  –Major criteria 1. Oral aphthous ulcers (round, discrete borders; heal without scarring) 2. Genital ulcers 3. Skin lesions (erythema nodosum) 4. Ocular disease (75%): recurrent, explosive inflammatory episodes with active episodes lasting 2–4 weeks Uveitis ... Read More »

Asteroid Hyalosis

Asteroid Hyalosis

Asteroid Hyalosis Refractile particles (calcium soaps) suspended in vitreous More common in older patients and those with diabetes; 25% bilateral Rarely affects vision, but may prevent visualization of posterior pole, use FA to look for abnormalities in these patients Source:  Ophthalmology Atlas(Photos of cases) Asteroid Hyalosis Read More »

Central Serous Chorioretinopathy CSR (Inkblot Leak)

Central Serous Chorioretinopathy CSR (Inkblot Leak)

Central Serous Chorioretinopathy CSR (Inkblot Leak) -Pinpoint area of hyperfluorescence on the fluorescein angiogram that gradually expands in a localized ovoid fashion. -There is no ascent of the fl uid in the subneurosensory retinal space. -This leak usually represents a slow diffusion of the dye through an incomplete or healing defect in the RPE. Source:  Ophthalmology Atlas(Photos of cases) Central ... Read More »

Central Serous Chorioretinopathy CSR (Mushroom or Umbrella Leak)

Central Serous Chorioretinopathy CSR (Mushroom or Umbrella Leak)

Central Serous Chorioretinopathy CSR (Mushroom or Umbrella Leak) -An idiopathic disorder involving a focal or multifocal leak at the level of theretinal pigment epithelium (RPE), usually in conjunction with a serous pigment epithelial detachment. -The leaks ascend in the subneurosensory retinal space until they reach the limits of the neurosensory detachments and then decussate temporally and nasally to form a ... Read More »

Stargardt Disease (Stargardt Macular Dystrophy, Fundus Flavimaculatus)

Stargardt Disease (Stargardt Macular Dystrophy, Fundus Flavimaculatus)

Stargardt Disease (Stargardt Macular Dystrophy, Fundus Flavimaculatus) -Polymorphic sheen in the macula which is generally ovoid in appearance,surrounding the fovea. -F.A:* in the early stages of the disease will show a so-called “dark choroid” corresponding to the paramacular region and peripheral fundus, where there is accumulation of lipofuscin in the pigment epithelium which blocks choroidal fluorescence. *A hyperfluorescence is seen ... Read More »

Retinitis Pigmentosa (Generalized Rod–Cone Dystrophies)

Retinitis Pigmentosa (Generalized Rod–Cone Dystrophies)

Retinitis Pigmentosa (Generalized Rod–Cone Dystrophies) *The typical features include: -Waxy pallor of the optic nerve. -Narrowing of retinal arterioles -A generalized mottling and moth-eaten pattern to the retinal pigment epithelium(RPE), often with bony spicule pattern of intraretinal pigment located in the midperiphery. *A variety of clinical manifestations include: – Cystoid macular edema, epiretinal membrane formation, optic nerve drusen. -A Coats’-like ... Read More »

Non-exudative (Dry) Age-related Macular Degeneration ( AMD )

Non-exudative (Dry) Age-related Macular Degeneration ( AMD )

Non-exudative (Dry) Age-related Macular Degeneration ( AMD ) -Variable degrees of medium to larger drusen. -Drusen are the hallmark of non-exudative AMD. -When well-delineated and associated with choriocapillaris atrophy,is termed geographic atrophy. -Alterations of the retinal pigment epithelium(RPE), including RPE hyperplasia and atrophy. -Large drusen and focal hyperpigmentation of the RPE are nonexudative features which represent an increased risk of ... Read More »

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