1. From the Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan; the 2Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan;
2. the Tomidokoro Eye Clinic, Tokyo, Japan;
3. the Singapore National Eye Centre, Singapore;
4. the Sugiura Eye Clinic, Saitama, Japan;
5. the Kanto Central Hospital of the Mutual Aid Association of Public School Teachers, Tokyo, Japan, and
6. From the Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan;
7. the Tajimi Iwase Eye Hospital, Tajimi, Japan.