Vein Occlusions/Artery Occlusions
Retinal Artery Occlusion
Retinal artery occlusion (RAO) exists when a retinal artery becomes blocked causing a lack of oxygen, which can then lead to severe vision loss.
Retinal Vein Occlusion
A retinal vein occlusion (RVO) occurs when one of the retinal veins becomes blocked. This causes serious symptoms and requires immediate treatment.