Abstract
Branch retinal vein occlusion (BRVO) is classified according to the anatomical location as a major, hemiretinal, or macular. BRVO is further classified into perfused (non-ischemic) or nonperfused (ischemic). Ischemic BRVO is defined as more than 5 disc diameters of nonperfusion on fluorescein angiography (FA). There is a significant contribution of FA and Optical Coherence Tomography in predicting treatment and determining prognosis.
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