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The central retinal vein is the venous equivalent of the central retinal artery and both may become occluded. [1] Since the central retinal artery and vein are the sole source of blood supply and drainage for the retina , such occlusion can lead to severe damage to the retina and blindness, due to ischemia (restriction in blood supply) and ...
Diagnostic techniques like ophthalmoscopy, visual field test, optical coherence tomography, fluorescein angiography, multifocal electroretinography and electrophysiology may be used in diagnosing AIBSE syndrome. [2] Subjective measurement of blind spot enlargement is done using visual field testing. [4]
Central nervous system CNV Choroidal neovascularization: CRAO Central retinal artery occlusion CRVO Central retinal vein occlusion CSR Central serous retinopathy CVA Cerebrovascular accident Dx Diagnosis dDx Differential diagnosis DR Diabetic retinopathy: ERM Epiretinal membrane ESR Erythrocyte sedimentation rate FTMH Full thickness macular ...
The central retinal vein (retinal vein) is a vein that drains the retina of the eye. It travels backwards through the centre of the optic nerve accompanied by the central retinal artery before exiting the optic nerve together with the central retinal artery to drain into either the superior ophthalmic vein or the cavernous sinus .
Cotton wool spots are commonly caused by changes to the retina secondary to diabetes, hypertension, or blockages to blood vessels to the retina, such as central retinal vein occlusion. [ 5 ] [ 8 ] While at one point believed to have been the result of nerve damage in the retina, interruptions to axoplasmic flow to these nerves may result from ...
Central retinal artery occlusion is a known feature of non-proliferative sickle cell retinopathy that has a low incidence in patients with non proliferative sickle cell retinopathy. [ 5 ] Optic nerve sign is represented by dilated capillaries that can be visualized in the nerve using fluorescein angiography.
Ocular ischemic syndrome is the constellation of ocular signs and symptoms secondary to severe, chronic arterial hypoperfusion to the eye. [1] Amaurosis fugax is a form of acute vision loss caused by reduced blood flow to the eye; it may be a warning sign of an impending stroke, as both stroke and retinal artery occlusion can be caused by thromboembolism due to atherosclerosis elsewhere in the ...
The diagnosis of branch retinal vein occlusion is made clinically by finding retinal hemorrhages in the distribution of an obstructed retinal vein. Fluorescein angiography is a helpful adjunct. Findings include delayed venous filling, hypofluorescence caused by hemorrhage and capillary nonperfusion, dilation and tortuosity of veins, leakage due ...