CRVO

Full Definition

Central retinal vein occlusion, a serious retinal vascular condition where the central retinal vein becomes blocked, typically at the lamina cribrosa. Results in widespread retinal hemorrhages, cotton-wool spots, and optic disc swelling throughout all four quadrants. Can be ischemic or non-ischemic, with ischemic forms having worse visual prognosis and higher risk of neovascular complications. Risk factors include glaucoma, hypertension, diabetes, and hypercoagulable states.

Usage

Usage note: Always capitalize; distinguish between ischemic and non-ischemic types in documentation.

In Context

• "The ischemic CRVO required pan-retinal photocoagulation to prevent neovascular glaucoma." — Retinal specialist treatment plan
• "Serial fluorescein angiography determined the CRVO was non-ischemic with good perfusion." — Follow-up imaging report