1. From the Department of Ophthalmology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; the
2. Doheny Eye Institute, Los Angeles, California; the 3Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, California; and the
3. Department of Ophthalmology, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan.