1. Department of Ophthalmology, Hallym University College of Medicine, Kangdong Sacred Heart Hospital, No. 150 Seongan-ro, Gangdong-gu, Seoul 134-701, Republic of Korea
2. Department of Psychiatry, Hallym University College of Medicine, Kangdong Sacred Heart Hospital, No. 150 Seongan-ro, Gangdong-gu, Seoul 134-701, Republic of Korea