1. Division of Ophthalmology; Matsue Red Cross Hospital; Matsue Japan
2. Department of Ophthalmology; Shimane University Faculty of Medicine; Izumo Japan
3. Department of Ophthalmology; Fukui-ken Saiseikai Hospital; Fukui Japan
4. Department of Ophthalmology; Nippon Telegraph and Telephone East Corporation Sapporo Medical Center NTT EC; Sapporo Japan
5. Department of Ophthalmology; St. Marianna University School of Medicine; Kawasaki Japan
6. Department of Ophthalmology; Tohoku University Graduate School of Medicine; Sendai Japan
7. Department of Ophthalmology; Okayama University Graduate School of Medicine; Okayama Japan
8. Department of Ophthalmology; Kagoshima University Graduate School of Medical and Dental Sciences; Kagoshima Japan
9. Department of Ophthalmology; Ehime University Graduate School of Medicine; Matsuyama, Ehime Japan
10. Iwase Eye Clinic; Gifu Japan