1. Department of Ophthalmology, Laboratory of Optometry and Vision Sciences, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
2. Center of Biostatistics, Design, Measurement and Evaluation, Department of Clinical Research Management, West China Hospital of Sichuan University, Chengdu, Sichuan, P.R. China
3. Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China. Research Laboratory of Macular Disease, West China Hospital, Sichuan University, Chengdu, China