Naoki Nakaya and Stanislav Tomarev (IMAGE) NIH/National Eye Institute Caption Naoki Nakaya, Ph.D., a co-first author of the study, with Stanislav Tomarev, Ph.D. in the laboratory. Credit Image credit: Dustin Hays, NEI Usage Restrictions No restrictions. License Public Domain 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.