Gene Therapy Improves Vision in Patients with Congenital Retinal Disease Filed under: Uncategorized — @ 12:30 pm In a clinical trial at The Children’s Hospital of Philadelphia, researchers from The University of Pennsylvania have used gene therapy to safely restore vision in three young adults with a rare form of congenital blindness. Although the patients have not achieved normal eyesight, the preliminary results set the stage for further studies of an innovative treatment for this and possi