AC/A基本概念、惯用检测法和计算公式的研究

目的 探讨AC／A概念及有关问题。方法 用隐斜法、梯度法和同视机法检测10例年龄从15～36岁、视力正常或接近正常人的AC／A率。结果 诸贯用检测法测量结果不统一且与临床实践矛盾。结论 通过对该率基本概念的分析和诸检测方法计算公式的数学考证，找出了矛盾的原因。为远梯度法和注视眼前加镜片且固视正前方的同视机法设计了新的计算公式。解释了调节性共同性内斜视的病因和发病机理。

The research about the fundamental conception, usual examined methods and calculating formula of AC/A ratio

Objective The research about the fundamental conception, usual examined and calculating formula of AC/A ratio. Method The AC/A ratio in 10 cases whose vision is mormal or approximately normal in age from 15 to 36 were measured by Heterophoria method. Far gradient method and synoptophore method. Results The author found the examined results by these usual methods were not unity and contrary to clinic observation, therefore the author analysesed the fundamental conception of AC/A ratio and checked calculation formula of these methods by mathematics so found cause of the differences, while discussed practical value of these methods. Conclusion The author also designed new calculation formula for far gradient method and synoptophore method that the fixing eye of adding lens gaze at the front. Finally the author explained pathogenesis and cause of accommodative concomitant esotropia with a new conception.