Objective To design a subjective aniseikonia test using the synoptophore and to evaluate the validity and repeatability of the tests for further use in clinical practice.Methods It was a repeat measurement design.Two graphs were designed based on the ratio of similar triangles.The differences in size,between subjective images for each eye were measured with the synoptophore.The validity of the test was evaluated by comparing the difference between the measured aniseikonia and the theoretical aniseikonia simulated by different power lenses, and the repeatability was evaluated by comparing the results obtained at two different time points with an interval of 24 hours.The data were analyzed by linear regression analysis and analysis of covariance. Results The regression coefficient of the overall regression equation was 0.908 for tbe two different time points,which was lower than the theoretical value (the theoretical value is 1).There was no statistically significant difference between the results of the two different time points.Conclusion The validity and repeatability of this aniseikonia test is relatively high.However,further clinical study should be carried out to test its use in the clinic.%目的 设计一种基于同视机的不等像检测画片,并检验其在临床应用中的有效性和可靠性.方法 前瞻性重复测量设计实验研究.根据相似三角形相似比的原理设计两张同视机不等像测量画片,用来检测主观不等像值.通过比较实际测量的不等像和无焦放大镜诱导的不等像理论来研究该画片的可靠性,比较间隔24 h的两次测量结果来研究该画片的可重复性.实验数据采用直线回归分析和协方差分析进行统计学分析.结果 两次测量结果总的回归系数0.908,比理论值l低；两次测量结果间差异无统计学意义.结论 该同视机不等像检查图具有较高的可靠性和可重复性.但其在临床中的检验效果,还需要做进一步的临床研究.
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