3,549
Participants
Start Date
September 26, 2005
Study Completion Date
June 23, 2016
National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda
Cleveland Clinic Foundation Childrens Hospital, Cleveland
Sun Yat-Sen University, Guangzhou
Harvard Medical School, Boston
Aravind Eye Hospital, Maduri
University of Punjab, Lahore
National Eye Institute (NEI)
NIH