The standard treatment for proliferative and non-proliferative diabetic retinopathy is laser photocoagulation, but novel methods, including injectable steroids or anti-vascular endothelial growth factor, are also showing promise. What tests can help opthamologists determine the area of leakage in the eye that needs treatment? How soon after surgery will patients see a change in their vision? Dr. Alan Ruby, opthamologist and clinical assistant professor of biomedical sciences at the Eye Research Institute at Oakland University, in Rochester, Michigan, discusses ways to maximize the overall visual outcome for patients with diabetic retinopathy. How can diabetic retinopathy be prevented? Dr. Roy Levit hosts.