1. Department of Ophthalmology Ehime University Graduate School of Medicine, Toon, Ehime, Japan
2. Department of Ophthalmology Ehime University Graduate School of Medicine, Toon, Ehime, Japan 2ROHTO Pharmaceutical Co., Ltd., Osaka, Japan
3. Department of Microbiology and Infection Control Science, Kyoto Pharmaceutical University, Yamashina, Kyoto, Japan