翻訳と辞書 |
Javal's rule : ウィキペディア英語版 | Javal's rule
Javal's rule is a mathematical formula used to estimate astigmatism based on keratometry readings.〔Schwartz, S. Geometric and Visual Optics. pg 219-221. McGraw-Hill. 2002.〕 The estimate is useful for high cylinder measures, generally over -2.00 diopters. The estimate is found by multiplying the difference in power between the two meridians by 1.25 and factoring in the average lenticular astigmatism, which is -0.50 x 090. ==Notes== 〔
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「Javal's rule」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.
|
|