Ischemic Retinal Vein Occlusion: characterizing the more severe spectrum of retinal vein occlusion

Retinal vein occlusion (RVO), including central (CRVO), branch (BRVO) and hemicentral and hemispheric RVO, is the second most common vascular cause of visual loss, surpassed only by diabetic retinopathy. The presence and extent of retinal ischemia in RVO is associated with a worse prognosis. On this basis, most previously conducted studies considered iRVO and non-iRVO as separate entities based on set thresholds of existing retinal ischemia, as determined by fundus fluorescein angiography (FFA).
Source: Survey of Ophthalmology - Category: Opthalmology Authors: Tags: Major review Source Type: research