Retinitis Pigmentosa Research (VIDEO) University of Oklahoma This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Muna Naash, Ph.D., principal investigator, Robert Leonard, M.D., Dean McGee Eye Institute, and patient Tracie Harris, Oklahoma City, talk about Dr. Naash's breakthrough work to prevent blindness. Credit University Hospitals Authority and Trust 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.