Central Retinal Vein Occlusion Associated with Hyperhomocysteinemia in a Patient with Heterozygous for the Methylenetetrahydrofolate Reductase C677T Mutation: Case Report

Abstract

etinal vein occlusion is the most common retinal vascular diseases after diabetic retinopathy 1 , but the pathogenesis and risk factors in patients with central retinal vein occlusion (CRVO) are still unclear. CRVO occurs more often in older patients and is typically associated with vascular disease. Systemic risk factors are encountered infrequently in young adults with CRVO.