The Effect of Macugen in Patients With Chronic, Post-Operative Cystoid Macular Edema

This research is being done to look at the effects of an experimental drug called pegaptanib (also called Macugen) for the treatment of swelling in the retina (the light sensitive tissue in the back of the eye) that can occur after cataract surgery. Swelling in the retina can lead to blurry vision. The only treatment available for this condition is eye drops that decrease swelling in the back of the eye, but eye drops may not decrease the swelling in everyone. We want to see if pegaptanib can decrease swelling in the retina and improve vision in patients with swelling after cataract surgery.