1. Department of Ophthalmology, Koshigaya Hospital, Dokkyo Medical University, Koshigaya, Saitama, Japan
2. Department of Ophthalmology, Koshigaya Hospital, Dokkyo Medical University, Koshigaya, Saitama, Japan 2Lively Eye Clinic, Soka, Saitama, Japan
3. Department of Ophthalmology, Koshigaya Hospital, Dokkyo Medical University, Koshigaya, Saitama, Japan 3Yoshida Eye Hospital, Hokodate, Hokkaido, Japan