1. Department of Ophthalmology, Tokyo Teishin Hospital, Tokyo, Japan
2. Higashinakano Tomidokoro Eye Clinic, Tokyo, Japan
3. Department of Ophthalmology, Mettapracharak Hospital, Bangkok, Thailand
4. Department of Ophthalmology, Kanto Central Hospital, Tokyo, Japan
5. Department of Ophthalmology, Saitama Red Cross Hospital, Saitama, Japan
6. Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan