Central retinal artery occlusion is a blockage of the central retinal artery. The blockage usually comes from a clot or fatty deposit in your blood vessel.
Who is at risk for central retinal artery occlusion?
High blood pressure and aging are the main risks for CRAO. Glaucoma and diabetes can also raise your risk. So can problems in which your blood is thicker and stickier than normal. In women, the problem has been linked to the use of birth control pills.