1. Department of Ophthalmology The University of Tokyo, Tokyo, Japan
2. Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
3. Department of Ophthalmology, Shimane University Faculty of Medicine, Shimane, Japan 4Division of Ophthalmology, Matsue Red Cross Hospital, Shimane, Japan
4. Department of Ophthalmology, Ehime University Graduate School of Medicine, Ehime, Japan
5. Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
6. Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
7. Department of Ophthalmology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
8. Department of Ophthalmology, University of Yamanashi Faculty of Medicine, Yamanashi, Japan
9. Orthoptics and Visual Science, Department of Rehabilitation, School of Allied Health Sciences, Kitasato University, Kanagawa, Japan