Retinal Artery Occlusion is a condition where one of the arteries supplying blood to the retina becomes blocked. This blockage can lead to sudden vision loss in the affected eye, as the retina requires a constant blood supply to function properly. Common causes include blood clots, atherosclerosis, and other cardiovascular issues. Symptoms often include a sudden decrease in vision, which may be partial or complete. Diagnosis typically involves a comprehensive eye examination, including fundoscopy to visualize the retina. Treatment options may vary, but they often focus on addressing the underlying causes and preventing further complications.