1. Department of Rehabilitation, Orthoptics and Visual Science Course, School of Allied Health Sciences
2. Nishimoto Eye Clinic, 41-8 Nakahara, Miya Konojyo 885-0032, Japan.
3. Department of Ophthalmology, School of Medicine, Kitasato University, 1-15-1 Kitasato, Sagamihara 228-8555, Japan
4. Ichibe Eye Clinic, 2-28-4 Narusegaoka, Machida, Tokyo 194-0011, Japan