1. Department of Ophthalmology; Faculty of Life Sciences; Kumamoto University; Kumamoto Japan
2. Department of Ophthalmology; Gifu University Graduate School of Medicine; Gifu Japan
3. Department of Ophthalmology; Osaka Kosei Nenkin Hospital; Osaka Japan
4. The Division of Ophthalmology & Visual Science; Niigata University Medical & Dental Hospital; Niigata Japan
5. Kowa Company, Ltd; Nagoya Japan
6. Department of Ophthalmology; Graduate School of Medicine; The University of Tokyo; Tokyo Japan