Mouse retina (IMAGE) University of Maryland School of Medicine Caption Healthy mouse retina (left) and CIB2 mutant mouse retina. The yellow blobs indicate undigested or improperly digested photoreceptors. Credit Saumil Sethna Usage Restrictions Credit 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.