[1] Kagoshima Univ, Grad Sch Med & Dent Sci, Dept Ophthalmol, Kagoshima 8908520, Japan
[2] Kyushu Univ, Grad Sch Med, Dept Ophthalmol, Fukuoka 812, Japan
[3] Natl Nagasaki Med Ctr, Nagasaki, Japan
[4] Miyata Eye Hosp, Miyazaki, Japan
[5] Kyushu Kosei Nenkin Hosp, Kitakyushu, Fukuoka, Japan
[6] Kagoshima City Hosp, Kagoshima, Japan
[7] Kimura Eye & Internal Med Hosp, Kimura, Japan