1. Department of Ophthalmology, Chungnam National University Sejong Hospital, Sejong, Republic of Korea
2. Department of Ophthalmology, Konyang University College of Medicine, Daejeon, Republic of Korea
3. Department of Ophthalmology, Chungnam National University Hospital, Daejeon, Republic of Korea
4. 1.0 Eye clinic, Daejeon, Republic of Korea