Retinal artery occlusion

The central retinal artery and its branches belong to peripheral arteries. Except for the retinal ciliary artery, it is the only blood vessel supplying nutrients to the inner layer of the retina. Impaired blood supply can cause retinal ischemia and hypoxia, which seriously damages visual function. The obstruction of the central retinal artery causes acute retina ischemia and severe vision loss, which is one of the blind emergencies. It should be diagnosed early and rescued immediately. If there is a retinal ciliary artery, some central vision can still be maintained.