Anc80 in the Retina (IMAGE) Harvard Medical School Caption The Anc80 virus delivers genes to the mouse retina that fluoresce green when expressed. Pictured here, the delivered genes are active in the retina's color-detecting cells. Credit Livia Carvalho Usage Restrictions Image may only be used with appropriate caption and 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.