A stroke affecting the eye, also known as a retinal artery occlusion, is a blockage in the blood vessels in your retina, the light-sensitive tissue at the back of your eye. The blockage is caused by a clot or occlusion (the narrowing or closure) in a blood vessel, or a buildup of cholesterol in the blood vessel.

There are several types of strokes involving the eye, depending on whether they affect the veins in your eye or the arteries. Veins are the blood vessels that carry blood toward your heart. Arteries are the blood vessels that carry blood away from your heart.


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