1. From the Aravind Medical Research Foundation, Aravind Eye Care System, Madurai, India; the2Lions Aravind Institute of Community Ophthalmology, Madurai, India; and the
2. Departments of International Health and4Dana Center for Preventive Ophthalmology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
3. From the Aravind Medical Research Foundation, Aravind Eye Care System, Madurai, India; the
4. Departments of International Health and5Ophthalmology and the