1. Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
2. Department of Ophthalmology, University of the Ryukyus, Okinawa, Japan
3. Department of Mathematics and Statistics in Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto, Japan
4. Department of Frontier Medical Science and Technology for Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan