1 *Stein Eye Institute, University of California-Los Angeles, Los Angeles, California; †Feinberg School of Medicine, Northwestern University, Chicago, Illinois; ‡Doheny Eye Institute, University of California-Los Angeles, Los Angeles, California; §Department of Ophthalmology, David Geffen School of Medicine, University of California - Los Angeles, Los Angeles, California; ¶New England Eye Center, Tufts Medical Center, Boston, Massachusetts; **Boston Image Reading Center, Boston, Massachusetts.