This is an illustration of an eye surgery in which a laser is used to burn off abnormal blood vessels on the surface of the retina. It was illustrated in 5 steps showing the position, cutting and removal of abnormal vessels, use of a laser to cause scarring that prevents new vessels from forming, and scleral buckling and gas bubble insertion which are done to increase the pressure within the eye to aid in healing. This condition is usually seen in diabetes patients, and if left untreated can result in blindness.