Avastin versus Triamcinolone for Diabetic Macular Edema at the time of Cataract Surgery

This study is comparing two injections — bevacizumab (Avastin) and triamcinolone (Triesence) — given at the time of cataract surgery in people with diabetic macular edema (swelling at the center of the retina caused by diabetes). Both medications help reduce swelling and protect vision. Researchers want to find out which one works better and lasts longer after the cataract operation. You may be eligible if: - You are 19 years or older - You have diabetes and have significant macular swelling or microaneurysms near the center of your vision - You need cataract surgery in the affected eye You may NOT be eligible if: - You have glaucoma with vision field loss or poorly controlled eye pressure - Your eye pressure rose above 35 mmHg after previous steroid treatment - You have significant lack of blood supply to the macula - Your vision in the other eye is very poor (worse than 6/60) - You are allergic to either study medication - You are a woman of childbearing potential not using contraception, or you are breastfeeding - You have had an intravitreal injection of triamcinolone within 10 weeks or Avastin within 3 weeks Talk to your doctor about whether this trial might be right for you.