1 *Departments of Ophthalmology, Neurology, and Neurosurgery, University of Cincinnati and the Cincinnati Eye Institute, Cincinnati, Ohio; †Vanderbilt University Medical Center, Vanderbilt Eye Institute, Nashville, Tennessee; ‡Aravind Eye Hospital and Postgraduate Institute of Ophthalmology, Aravind Eye Care System, Madurai, India; §Duke University Eye Center, Durham, North Carolina; ¶Eye Foundation Retina Institute, Ikeja, Lagos, Nigeria; and **Retina Division, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland.