Macular Degeneration Illustration (IMAGE) Washington University School of Medicine Caption Studying mice and cells from patients, vision researchers at Washington University School of Medicine in St. Louis found that as immune cells called macrophages get older, they are more likely to contribute to inflammation and abnormal blood vessel growth in the back of the eye. This can damage vision in patients with age-related macular degeneration. Credit DANYEL CAVAZOS/MICHAEL WORFUL 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.