睫状肌麻痹下电脑验光和检影验光的对比研究

A comparative study of computer and retinoscopy optometries under the ciliary muscles paralysed

目的 比较电脑验光和检影验光 ,了解电脑验光能否取代检影验光。方法 随机选择门诊睫状肌麻痹下的屈光不正患者 30 1例 6 0 2眼 (1例除外 ) ,全部进行远近视力、外眼和眼底检查 ,均无眼前节炎症、白内障、眼底病和其他眼疾。使用日本生产的 710 0型自动验光仪先作电脑验光 ,再作检影验光。然后选其中双眼均为复性近视散光和复性远视散光者进行对比。结果 两种验光测得的散光轴轴向相同或极相近似 ,经统计学处理 ,差异无显著性 ,P >0 .0 5。在复性近视散光组 ,散光轴轴向的屈光度 ,电脑验光比检影验光平均每眼高 - 1.0 0 D,经统计学处理 ,差异有非常显著性意义 ,P <0 .0 1;在复性远视散光组 ,散光轴轴向的屈光度 ,电脑验光比检影验光平均每眼低+1.0 0 D,经统计学处理 ,差异有非常显著性。 P <0 .0 1。结论 电脑验光检测复性近视散光和复性远视散光患者的散光轴轴向 ,接近于检影验光的结果 ,但其所测得的屈光度误差的精确度却超过了 0 .12～ 0 .2 5 D。故电脑验光还不能取代检影验光 ,因电脑验光简便、快速 ,可为检影验光提供参考 ,并可用于屈光不正的群体普查工作。

Objective Through comparing the result of computer optometry with that of retinoscopy optometry,trp to know if the latter could be replaced by the former.Methods three hundred and one cases 602 eye,except on case with abnormal refraction under the paralyzed ciliary muscles were chosen at random and examined,no infections of the external eyes,cataracts,fundus diseases and other eye infections were found.For optometry,7100 automatic optometry instrument was used first,and retinoscopy next.Then two results of the binocular compound myopic and hyperopic astigmatisms were compared on another.Results The astigmatic axes obtained from two optometric methods were just the same or nearly identical with no statistically significant difference(P>0 05).In binocular compound myopic astigmatism,the diopters of astigmatic axes were-1.00 D higher in computer than in retinoscopic optometry with statistically significant difference(P<0 01).And diopters of the axes of the binocular compound hyperopic astigmatism were+1.00 D lower in computer optometry than in retinoscopic optometry with significant difference statistically(P<0 01) Conclusions Both the astigmatic axes of binocular compound myopic and hyperopic Astigmatisms determined by both computer and retinoscopy optometries Were nearly the same.But,the diopters obtained from both methods had differences more that 0.12-0.25 D.It denotes that the retinoscopy optometry can still not be replaced by computer optometry.As the latter is simple,Easy and fast in operating,it can be used as a reference for the former,and in popular screening as well.