1. From the Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; 2Singapore Eye Research Institute, Singapore; 3Department of Ophthalmology, School of Medicine, Taipei Medical University, Taipei, Taiwan;
2. Community Medicine Research Center and Institute of Public Health and
3. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland;
4. From the Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; 6Department of Ophthalmology, National Yang-Ming University, Taipei, Taiwan;
5. Department of Ophthalmology, Cheng Hsin General Hospital, Taipei, Taiwan;
6. Department of Ophthalmology, School of Medicine, Taipei Medical University, Taipei, Taiwan; 8Department of Ophthalmology, Shuang Ho Hospital-Taipei Medical University, Taipei, Taiwan;
7. From the Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; 2Singapore Eye Research Institute, Singapore; 9Saw Swee Hock School of Public Health, and Department of Ophthalmology, Yong Loo Lin School of Medicine, National Univer