 Diabetic retinopathy is an eye condition caused by diabetes in which new blood vessels grow on the retina the back, inside part of the eye and the iris. These vessels are not normal and may leak or break, causing bleeding in the eye. This process can lead to vision loss or blindness, glaucoma disease of the eye where eye pressures are usually too high resulting in damage to the optic nerve, or other eye problems. This study is to determine if a drug called Macugen may help to stop the growth of these abnormal blood vessels on the iris. 