1. Department of Ophthalmology, Gifu University Graduate School of Medicine, Gifu, Japan
2. Department of Ophthalmology, Toho University Ohashi Medical Center, Tokyo, Japan
3. Department of Ophthalmology, Ogaki Municipal Hospital, Gifu, Japan
4. Department of Ophthalmology, Gifu Municipal Hospital, Gifu, Japan
5. Department of Neurology and Geriatrics, Gifu University Graduate School of Medicine, Gifu, Japan
6. Department of Neurology, Ogaki Municipal Hospital, Gifu, Japan