1. Department of Ophthalmology, Juntendo University School of Medicine, Tokyo, Japan
2. Department of Ophthalmology, Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan
3. National Institute of Public Health, Tokyo, Japan
4. Department of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
5. Institute for Health Outcomes & Process Evaluation Research, Kyoto, Japan
6. Department of Epidemiology and Healthcare Research, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
7. Division for Vision Research, National Institute of Sensory Organs, National Tokyo Medical Center, Tokyo, Japan