The central retinal artery is a vital blood vessel that supplies oxygen and nutrients to the inner layers of the retina, which is the light-sensitive tissue at the back of the eye. It branches off from the ophthalmic artery, a major artery that provides blood to the eye and surrounding structures. Proper functioning of the central retinal artery is essential for maintaining healthy vision. If the central retinal artery becomes blocked, it can lead to a condition known as central retinal artery occlusion (CRAO), which can cause sudden vision loss. This blockage can occur due to various factors, including blood clots or atherosclerosis. Timely medical intervention is crucial to prevent permanent damage to the retina.