1. Department of Ophthalmology, Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, Inner Mongolia, P.R. China
2. Department of Ophthalmology, Shanxi Eye Hospital, Taiyuan, Shanxi, P.R. China
3. Department of Intelligence and Collaboration, Yangzhou Collaborative Innovation Research Institute of Shenyang Aircraft Design and Research Institute, Yangzhou, Jiangsu, P.R. China
4. Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
5. Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, P.R. China
6. Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA