Central retinal artery occlusion

What it means

Blockage of the main artery in the retina. In the acute phase, the fundus may show cherry red spot and stasis of retinal flow. The typical presentation is one of profound monocular visual loss.

Central retinal artery occlusion can manifest as sudden, acute, and painless loss of vision in one eye. Central vision may be spared if there is patent cilioretinal artery supplying the fovea.

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