1. Department of Ophthalmology Peking University People's Hospital Beijing China
2. Key Laboratory of Vision Loss and Restoration Ministry of Education Beijing Key Laboratory for the Diagnosis and Treatment of Retinal and Choroid Diseases Beijing China
3. Department of Biostatistics Peking University Clinical Research Institute Beijing China
4. Doheny Eye Institute Los Angeles California USA
5. Department of Ophthalmology David Geffen School of Medicine at University of California‐Los Angeles Los Angeles California USA