Retinitis Pigmentosa (IMAGE) Columbia University Irving Medical Center Caption Image of retina from right eye of a patient with retinitis pigmentosa due to phosphodiesterase deficiency. Intraretinal pigments (pink) are seen in areas of photoreceptor loss. Credit The Jonas Children's Vision Care, Columbia University Medical Center 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.