Credit: Andrew Antoszyk, M.D. Surgical and injectable drug approaches are equally effective for treatment of bleeding inside the eye from proliferative diabetic retinopathy (PDR), according to a National Eye Institute (NEI)-supported clinical study from the DRCR Retina Network (DRCR.net). A consequence of diabetes, PDR involves the growth of new, abnormal blood vessels in the light-sensing retina. These blood vessels are prone to bleeding into the gel-like vitreous that fills the eye, causing vision loss. NEI is part of the National Institutes of Health. Researchers compared anti-vascular end...