eye disorders
Blockage of Central Retinal Arteries and Branch Retinal Arteries
Prognosis
If the blockage occurred in a branch of the central retinal artery, people may maintain good to fair vision. If the blockage occurred in the central retinal artery itself, vision loss is often profound, even with treatment. Once the retinal tissue becomes permanently damaged, which can happen as quickly as 90 minutes after the blockage, vision loss is usually permanent. If Giant Cell Arteritis is the cause of the retinal artery blockage, prompt diagnosis and treatment may allow people to regain some lost vision and be protected from damage to the other eye. People with retinal artery occlusion may have blockages affecting other arteries that supply the brain. These blockages increase the risk of Overview of Stroke , particularly in the weeks following a central retinal artery occlusion. 