Safety and Tolerability of MS-R001 in Patients With Diabetic Macular Edema Secondary to Diabetic Retinopathy

Inclusion Criteria include but are not limited to: * Diagnosed with diabetes mellitus * Visual acuity of 20/40 to 20/200 in study eye Exclusion Criteria include but are not limited to: * Any other ocular disease that could compromise vision in the study eye * Intraocular surgery of the study eye within 90 days prior to study start * Capsulotomy of the study eye within 30 days prior to study start