Over 2.5 million cataract surgeries are performed yearly in the United States. Despite advances in cataract surgery, cystoid macular edema (CME) is the most common cause of loss of vision after cataract surgery, occurring in approximately 0.3% to 3% of all uncomplicated surgeries. If the surgery is complicated, CME can occur in up to 20% of these patients. In CME, fluid accumulates in cystic spaces within the outer plexiform layer of the retina, resulting in decreased vision.