1. Department of Ophthalmology National Defense Medical College Tokorozawa Japan
2. Department of Ophthalmology Hyogo College of Medicine Nishinomiya Japan
3. Department of Ophthalmology University of Fukui Faculty of Medical Sciences Yoshida Japan
4. Department of Ophthalmology Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan
5. Department of Ophthalmology Nara Medical University Kashihara Japan
6. Department of Ophthalmology Diabetes Center Tokyo Women's Medical University School of Medicine Tokyo Japan
7. Department of Ophthalmology Mie University Graduate School of Medicine Tsu Japan