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The Golovin–Sivtsev Table ((ロシア語:Таблица Головина-Сивцева)) is a standardized table for testing visual acuity, which was developed in 1923 by Soviet ophthalmologists Sergei Golovin and D. A. Sivtsev.〔 (Refraction and acuity )〕 In the USSR It was the most common table of its kind, and its use is still widespread in several post-Soviet states.〔 (Golovin–Sivtsev Table for determining the visual acuity )〕 The table consists of two parts with 12 rows each. A value ''D'' indicated to the left of each row gives the distance in meters from which a person with a visual acuity of 1.0 can read the corresponding row. A value ''V'' indicated to the right gives the minimum visual acuity needed to read the row from a distance of 5 meters. The rows represent visual acuity values between 0.1 and 2.0.〔 (Some information on Golovin–Sivtsev Table ) — that website as a whole doesn't seem to be reliable, but it seems to present reliable information on Golovin-Sivtsev Table dimensions〕 The left part consists of series of the Cyrillic letters Ш, Б, М, Н, К, Ы, and И in a definite order. In the first row the size of a character is 70 mm, in the second row it is 35 mm, and 7 mm in the last row. The width of each character is equal to its height. The right part of the table consists of series of Landolt C symbols. == References == 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「Golovin–Sivtsev table」の詳細全文を読む スポンサード リンク
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