Bo Een Hwang1, Ye Jin Ahn1, Sun Young Shin1, Shin Hae Park2. 1. Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. 2. Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. vaccine@catholic.ac.kr.