1 Department of Ophthalmology, Kangwon National University School of Medicine, #156 Baengnyeong-ro, Chuncheon, 24289, South Korea.
2 Department of Neurology, Kangwon National University School of Medicine, Chuncheon, Korea.
3 Department of Ophthalmology, Kangwon National University School of Medicine, #156 Baengnyeong-ro, Chuncheon, 24289, South Korea. yyjuuuu@kangwon.ac.kr.