Clinical Research Directory

Inclusion Criteria for participants with diabetes: * Male or female participants 18-79 years old * With Type 1 diabetes for over 5 years or Type 2 diabetes of any duration Exclusion Criteria for participants with diabetes: * Vision worse than 20/200 * Inability to maintain fixation for OCT imaging * Significant kidney disease, kidney failure or kidney transplant * Unstable medical status, including blood pressure greater than 180/110 or unstable heart disease * Pregnant or nursing an infant * Presence of an eye disease (other than diabetic retinopathy) that can affect retinal blood flow, retinal permeability or retinal anatomy * Significant cataract, corneal scar, vitreous bleed or other media opacity * History of major eye surgery within 4 months prior to enrollment in this study Inclusion Criteria for participants without diabetes (controls): * Male or female participants 18-79 years old Exclusion Criteria for participants without diabetes (controls): * Vision worse than 20/200 * Inability to maintain fixation for OCT imaging * Significant kidney disease, kidney failure or kidney transplant * Unstable medical status, including blood pressure greater than 180/110 or unstable heart disease * Pregnant or nursing an infant * Presence of any eye disease that can affect retinal blood flow, retinal permeability or retinal anatomy * Significant cataract, corneal scar, vitreous bleed or other media opacity * History of major eye surgery within 4 months prior to enrollment in this study