1. From the Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea; the 2Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnam, Korea;
2. From the Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea; the 3Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea;
3. the Seoul National University Hospital Healthcare System Gangnam Center, Healthcare Research Institute, Seoul, Korea; and the 5Department of Ophthalmology, Myongji Hospital, Kwandong University College of Medicine, Seoul, Korea.