1. From the State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China; the
2. Department of Ophthalmology, Beijing Tongren Eye Center, Tongren Hospital, Capital University of Medical Sciences, Beijing, China; the
3. Department of Ophthalmology and Visual Science, Chinese University of Hong Kong, Kowloon, Hong Kong; the
4. Dana Center, Wilmer Eye Institute, Baltimore, Maryland; and the
5. Department of Ophthalmology, Peking Union Medical College, Beijing, China.