New research led by scientists at Mass Eye and Ear and Brigham and Women’s Hospital, member hospitals of Mass General Brigham, reveals the role that a genetic variant associated with Alzheimer’s disease, APOE4, plays in protecting against glaucoma. In the new study, published August 16 in Immunity, the researchers also used a pharmacologic treatment to successfully prevent the destruction of neurons in the eyes of mice with glaucoma by targeting the APOE signaling pathway.