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CRVO

Originally posted on @retina.rocks 05/05/2021

This patient presented with 20/70 vision from an acute central retinal vein occlusion (CRVO) with mild macular edema.

The mild vision reduction and the well-perfused fluorescein angiogram support the diagnosis of a non-ischemic CRVO.

He is currently undergoing intravitreal injections for the macular edema.

Learning Points:
Patients with CRVO are at risk of vision loss due to macular edema or anterior segment neovascularization. Macular edema is common in both non-ischemic and ischemic occlusions, although rubeosis is found almost exclusively with ischemic occlusions.

Iris neovascularization with neovascular glaucoma develops in about two-thirds of patients with untreated ischemic occlusions. Rubeosis is initially treated with an anti-VEGF injection, followed by aggressive, complete panretinal photocoagulation.

Some patients will need a glaucoma tube or a cyclodestructive procedure if the IOP remains too high.