1. Department of Ophthalmology, Institute of Health Sciences, Gyeongsang National University College of Medicine, Gyeongsang National University Hospital, Jinju, South Korea
2. Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
3. Department of Preventive Medicine, Institute of Health Science, Gyeongsang National University College of Medicine, Jinju, South Korea