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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク B4 (classification) ： ウィキペディア英語版 B4 (classification) B4 is a blind sport classification used in a variety of sports including sailing, bowls, swimming, and cycling. Unlike other blind sport classes, it only uses visual acuity for the purpose of being classed into it. ==Definition== This is a medical classification for people with visual impairments.〔 Unlike other blind sport classes, it only uses visual acuity for the purpose of being classed into it.〔(【引用サイトリンク】title=BSI Blind Sailing International| Eligibility )〕 BlindSports SA defines this classification as "This is from visual acuity above 6/60 up to and including visual acuity of 6/24 (up to 25%). No visual field is considered."〔(【引用サイトリンク】title=BlindSports SA )〕 USABA defines this classification as "from visual acuity above 20/200 and up to visual acuity of 20/70 and a visual field larger than 20 degrees in the best eye with the best practical eye correction."〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「B4 (classification)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.