为了解“对数”与“国际”标准远视力表检查结果有否差异,我们对926名中、小学生1852只眼同时使用两表进行对照检查。视力表表面照度、检查方法、评定标准均按统一规定进行。并将受检者随机分成一组,先用对数视力表检查,再用国际视力表检查。为了便于统计和对照,将国际标准视力表的小数记录值换算成5分计算值。检查结果经统计学处理,表明用“对数”表检查之视力均值低于用“国际”表检查之视力均值,相差0.0975,t=27.7,P<0.005, In order to understand whether there is any difference between “logarithmic” and “international” standard distance visual acuity chart test results, we conducted a control check on 926 primary and secondary school students using the two tables simultaneously. Eye chart surface illumination, inspection methods, assessment criteria are uniform according to regulations. Subjects were randomly divided into a group, the first with a logarithmic visual acuity chart, then the international visual acuity chart. In order to facilitate the statistics and control, convert the decimal record of the international standard chart to 5 points. The test results were statistically processed, indicating that the mean visual acuity of the “logarithmic” table was lower than that of the “international” table with a difference of 0.0975, t = 27.7, P <0.005,