[1] Univ Utah, Moran Eye Ctr, Sch Med, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USA
[2] Sichuan Med Sci Acad, Sichuan, Peoples R China
[3] Sichuan Prov Peoples Hosp, Sichuan, Peoples R China
[4] Sun Yat Sen Univ, Zhongshan Ophthalm Ctr, Guangzhou, Peoples R China
[5] Retina Associates Utah, Holladay, UT USA