Affiliation: | (1) Department of Ophthalmology, Mito Kyodo Hospital, 3-2-7 Miyamachi, Mito Ibaraki, 310-0015, Japan;(2) Department of Ophthalmology, Tsukuba Central Hosp, 1589-3 Kashiwadachou, Ushiku Ibaraki, 300-1211, Japan;(3) Department of Ophthalmology, Institute of Clinical Medicine, Tsukuba Univ, 1-1-1 Tennoudai, Tsukuba Ibaraki, 305-8575, Japan |