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Jaeger chart : ウィキペディア英語版 | Jaeger chart The Jaeger chart is an eye chart used in testing for near-sightedness. It is a card on which a text is printed, with the various paragraphs of the text having sizes of type increasing from 0.37mm to 2.5mm. This card is to be held by a patient at a fixed distance from the eye. The smallest print that the patient can read determines their visual acuity. The original 1867 chart had a text containing seven paragraphs and a corresponding seven-point scale. ==See also==
* Snellen chart
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「Jaeger chart」の詳細全文を読む
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