1. Department of Ophthalmology, Nihon University School of Medicine, Tokyo, Japan;
2. Department of Visual Sciences, Nihon University School of Medicine, Tokyo, Japan;
3. Department of Ophthalmology, Yokohama Minami Kyosai Hospital, Yokohama, Japan;
4. Department of Ophthalmology, Kikuna Yuda Eye Clinic, Yokohama, Japan;
5. Department of Ophthalmology, Kanazawa University Hospital, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan; and
6. Division of Ophthalmology, Department of Visual Sciences, Nihon University School of Medicine, Nihon University Hospital, Tokyo, Japan.