Delivering Genes to the Eye (IMAGE) University of Pennsylvania Caption A photomicrograph collage shows the subretinal space of a vision-impaired dog with a gene therapy vector delivering a "healthy" copy of the affected gene. Credit Confocal photomicrograph: Karina E. Guziewicz (School of Veterinary Medicine, University of Pennsylvania); Art: Mary Leonard (Biomedical Art & Design, University of Pennsylvania) Usage Restrictions Giving credit as stated. 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.