Yu, Katz and Krauzlis in the laboratory. (IMAGE) NIH/National Eye Institute Caption Gongchen Yu, Ph.D., Leor Katz, Ph.D., and Richard Krauzlis, Ph.D. Credit Dustin Hays, National Eye Institute 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.