1. From the Catholic Institute for Visual Science and the2Health Promotion Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; the
2. From the Catholic Institute for Visual Science and the
3. B & VIIT Eye Center, Gangnam, Korea; and the
4. National Evidence-Based Healthcare Collaborating Agency (NECA), Seoul, Korea.
5. From the Catholic Institute for Visual Science and the4National Evidence-Based Healthcare Collaborating Agency (NECA), Seoul, Korea.