[1] Nihon Univ, Sch Med, Dept Visual Sci, Div Ophthalmol, Tokyo, Japan
[2] Ehime Univ, Sch Med, Dept Ophthalmol, Matsuyama, Ehime, Japan
[3] Kochi Med Sch, Dept Ophthalmol, Kochi, Japan
[4] Tottori Univ, Sch Med, Dept Ophthalmol, Tottori, Japan
[5] Fukuoka Univ, Sch Med, Dept Ophthalmol, Fukuoka, Japan
[6] Tokyo Womens Med Univ, Sch Med, Dept Ophthalmol, Tokyo, Japan
[7] Tsurumi Univ, Dent Hosp, Dept Ophthalmol, Yokohama, Kanagawa, Japan
[8] Hokkaido Univ, Fac Med, Dept Ophthalmol, Sapporo, Hokkaido, Japan
[9] Hokkaido Univ, Grad Sch Med, Sapporo, Hokkaido, Japan
[10] Kumagai Eye Clin, Yamaguchi, Japan
[11] Juntendo Univ, Sch Med, Dept Ophthalmol, Tokyo, Japan
[12] Okamoto Eye Clin, Matsuyama, Ehime, Japan