1. Department of Ophthalmology, Ajou University School of Medicine, Suwon, Korea.
2. Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea.
3. Department of Cardiovascular and Metabolic Disease Etiology Research Center, Ajou University School of Medicine, Suwon, Korea.
4. Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea.
5. Department of Ophthalmology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.