Developing Retina (IMAGE) Children's Hospital Los Angeles Caption Developing retina showing cone precursor cells (green) and areas of RB protein loss (red). Credit Hardeep Singh, PhD, of Children's Hospital Los Angeles 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.