Kyung Tae Kim1, Jae-Hyung Kim2. 1. Department of Ophthalmology, Chungbuk National University College of Medicine, 776 1st Sunhwan-Ro, Gaesin-dong, Heungduk-ku, Cheongju, 361-711, South Korea. 2. Department of Ophthalmology, Chungbuk National University College of Medicine, 776 1st Sunhwan-Ro, Gaesin-dong, Heungduk-ku, Cheongju, 361-711, South Korea. phaco@mailo.cbnuh.or.kr.