OcuStem Nutritional Supplement in Diabetic Patients With Mild to Moderate Non-proliferative Retinopathy

Inclusion Criteria: * Age ≥ 18 years * One or both study eyes per subject may be enrolled. * Diagnosis of diabetes mellitus (type 1 or type 2) * Any one of the following will be considered to be sufficient evidence that diabetes is present: 1. Current regular use of insulin for the treatment of diabetes 2. Current regular use of oral anti-hyperglycemia agents for the treatment of diabetes 3. Documented diabetes by ADA and/or WHO criteria. * The study eye must meet the following: 1. Presence of microaneurysms or at least mild non-proliferative diabetic retinopathy (level 20 or higher) on clinical exam. 2. No presence of center-involved diabetic macular edema (DME) as evidenced by OCT central subfield thickness \<250 microns(or spectral domain OCT equivalent). 3. Visual acuity light perception or better. Exclusion Criteria: * A current ocular condition that, in the opinion of the investigator, visual acuity might be affected now and/or may need to be treated (e.g., DME, foveal atrophy, pigment abnormalities, dense subfoveal hard exudates, nonretinal condition (cataract ), epiretinal membrane or vitro-macular traction) or during the course of the study (e.g., vein occlusion, uveitis or other ocular inflammatory disease, neovascular glaucoma, etc.). * A history of a major ocular surgery (including vitrectomy, scleral buckle, any intraocular surgery, etc.) within prior 4 months or major ocular surgery including cataract removal anticipated within the next 4 months following enrollment. * Pregnant Women