Central retinal vein occlusion

What it means

Central retinal vein occlusion is an occlusion of the main retinal vein posterior to the lamina cribrosa of the optic nerve and is typically caused by thrombosis.

Central retinal vein occlusion may be associated with glaucoma or ocular hypertension. If the central retinal vein has two tributaries at the optic disc, hemiretinal vein occlusion may occur. It can cause cilioretinal arteriolar hypoperfusion.

Rare diseases that can present with this2

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category