Safety and Efficacy Study of Dexamethasone Versus Ranibizumab in Patients With Diabetic Macular Edema

Injection of 700 ug dexamethasone intravitreal implant into the study eye on Day 1, Month 5, and Month 10.

Injection of ranibizumab 0.5 mg into the study eye on Day 1. Patients may receive additional injections on a monthly basis, as needed, for disease progression.