1. Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Kochi, Japan
2. Department of Ophthalmology, Toho University, Tokyo, Japan
3. Laboratory of Veterinary Microbiology I, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
4. Department of Microbiology and Infection, Kochi Medical School, Kochi University, Kochi, Japan
5. Department of Ophthalmology, Gunma University Graduate School of Medicine, Gunma, Japan