1 Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea; Division of Glaucoma, Department of Ophthalmology, Seoul National University Hospital, Seoul, Republic of Korea.
2 Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea; Division of Glaucoma, Department of Ophthalmology, Seoul National University Hospital, Seoul, Republic of Korea. Electronic address: md092@naver.com.