A Study of MK0140 in Diabetic Patients With Macular Edema (0140-001)

Inclusion Criteria: * Patient has clinically significant macular edema as a result of their diabetes (Type I or Type 2) * Patient has in the study eye, 20/40 - 20/160 vision * Patient has Type 1 or Type 2 diabetes * Patient agrees to remain abstinent or use (or have their partner use) 2 acceptable methods of birth control Exclusion Criteria: * Patient has had any active ocular infection in either eye * Patient has intraocular pressure \> 22 mmHg or a diagnosis of glaucoma * Patient has cystoid macular edema in the study eye * Patient has a history of elevated IOP in response to ocular steroid therapy in either eye * Patient has had intraocular surgery in the study eye within 6 months prior to Visit 1 * Patient has an HbAIc value \> 10% at Visit 1 * Patient has within the last 4 months initiated intensive insulin treatment or plan to do so in the next 4 months * Patient has a history of cancer within 5 years prior to signing informed consent * Patient has clinically-relevant chronic renal failure * Patient has high blood pressure * Patient has coronary heart disease * Patient has known allergies to steroids