484
Participants
Start Date
December 29, 2005
Study Completion Date
July 29, 2016
National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda
Duke University, Durham
University of Utah, Salt Lake City
Eye Research Institute, Zhongstan Ophthalmic Ctr, Sun Yat-Sen University, Guangzhou
National Eye Institute (NEI)
NIH