1. From the Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; the2Department of Ophthalmology and the3Community Medicine Research Center and Institute of Public Health, National Yang-Ming University, Taipei, Taiwan;
2. Community Medicine Research Center and Institute of Public Health, National Yang-Ming University, Taipei, Taiwan;4Department of Health Management, I-Shou University, Kaoshung, Taiwan;
3. From the Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; the2Department of Ophthalmology and the
4. From the Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; the2Department of Ophthalmology and the5Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; and the
5. From the Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; the2Department of Ophthalmology and the6Chen-Hsin Medical Center, Taipei, Taiwan.
6. Community Medicine Research Center and Institute of Public Health, National Yang-Ming University, Taipei, Taiwan;