[1] Tokyo Med & Dent Univ, Dept Ophthalmol & Visual Sci, Grad Sch Med & Dent Sci, Bunkyo Ku, Tokyo 1138519, Japan
[2] Japanese Acute Retinal Necrosis Study Grp, Tokyo, Japan
[3] Kyorin Univ, Sch Med, Dept Ophthalmol, Mitaka, Tokyo 181, Japan
[4] Tokyo Med Univ, Dept Ophthalmol, Tokyo 1608402, Japan
[5] Yokohama City Univ, Dept Ophthalmol & Visual Sci, Grad Sch Med, Yokohama, Kanagawa 232, Japan
[6] Hokkaido Univ, Dept Ophthalmol, Grad Sch Med, Sapporo, Hokkaido, Japan
[7] Japan Community Hlth Care Org Osaka Hosp, Dept Ophthalmol, Osaka, Japan
[8] Yamaguchi Univ, Dept Ophthalmol, Grad Sch Med, Ube, Yamaguchi 755, Japan
[9] Tokyo Med & Dent Univ, Hosp Med, Clin Res Ctr, Tokyo, Japan