Nanoparticles entering neural retina. (IMAGE) Oregon State University Caption Nanoparticles entering neural retina. Credit Image provided by Gaurav Sahay, OSU College of Pharmacy Usage Restrictions None License Original 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.