Blood Vessels in the Retina (IMAGE) Johns Hopkins Medicine Caption This image shows the blood vessels in the retina of a patient with proliferative diabetic retinopathy. Credit Wilmer Photography Usage Restrictions Credit required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.