Blocked blood flow may bring strokes in some parts of the body, including the eye. Eye-related blockage can be caused by damage to any vital eye structures or parts such as the retina and optic nerve. Once an ocular blockage is caused, nutrients and oxygen can no longer flow through the blood, which in turn may result in eye strokes. People who have eye acclusion may suffer a sudden and unexplainable loss of vision and increased blood pressure.
There are several types of eye occlusion depending on the different location: Branch retinal artery occlusion, Branch retinal vein occlusion, Central Retinal Artery Occlusion, Central Retinal Vein Occlusion. Different type may have different cause and symptom, such as BRAO is usually caused by a small clot. A BRAO can cause a sudden loss of peripheral vision, BRVO can cause a small clot in a retinal vein. CRAO can cause sudden, serious, but painless loss of vision in one eye and CRVO causes mild to severe sudden but painless loss of vision.