Retinas (IMAGE) Office of Naval Research Caption A retina with the degenerative vision disease, retinitis pigmentosa (right) is compared to a healthy retina. Credit Friedrich Miescher Institute for Biomedical Research Usage Restrictions None 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.