AC/A 为调节性集合(Accommadat-ive convegence)与调节(Accommada-tion)之间的三棱镜比率。AC/A 比值的异常是引起隐斜和显斜的原因之一,了解AC/A 可做为斜视诊断分型的依据及治疗效果的观察指标,并可以指导手术方法的选择。斜视手术对AC/A 的影响,国内未见报告,本文通过40例斜视手术前后AC/A 比值的观察,报告如下。对象与方法 AC / A is the prism ratio between the Accomodation Set and Accomodation. AC / A ratio anomaly is caused by phoria and oblique one of the reasons to understand AC / A can be used as the basis for the diagnosis of strabismus and treatment of the observed indicators, and can guide the choice of surgical methods. Strabismus surgery on the impact of AC / A, no domestic report, this article through 40 cases of strabismus AC / A ratio before and after the observation, the report is as follows. Objects and methods