Kass (IMAGE) Washington University School of Medicine Caption Michael A. Kass, MD, (right) led the national Ocular Hypertension Treatment Study to determine whether lowering elevated eye pressure in patients might prevent vision loss from glaucoma. Kass and colleague Mao O. Gordon, PhD, recently completed follow-up studies on patients 20 years after the start of the original study and found that not all patients with elevated eye pressure need pressure-lowering treatment to prevent vision loss from glaucoma. Credit Washington University School of Medicine 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.