<unk>  <unk>  is a disease of the eye where the flow of blood through the central retinal<unk>  is blocked (occluded). There are several different causes of this occlusion; the most common is carotid<unk>  atherosclerosis.
Central retinal artery occlusion
Branch retinal artery occlusion
Branch retinal vein occlusion
Retinal vasculitis
Central retinal vein occlusion
Arteritic anterior ischemic optic neuropathy
Posterior ischemic optic neuropathy
Ischemic optic neuropathy