Gene Variant Linked to Macular Degeneration (audio) Washington University School of Medicine Share Print E-Mail Loading audio... Caption Researchers from around the world, led by scientists at the Genome Institute at Washington University School of Medicine and the University of Michigan School of Public Gealth, have identified a mutation in a gene that's linked to age-related macular degeneration, the leading cause of blindness in Americans over 50. Jim Dryden reports. Credit Washington University BioMed Radio Usage Restrictions None Share Print E-Mail 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.