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目的探讨屈光不正患者AC/A比率均值及其特点.方法用TSJ-3型同视机测定屈光不正270例AC/A比率.行扩瞳验光后,在复验时裸眼及戴矫正眼镜各测量一次;按平时是否戴镜分组,并同正常人AC/A比率作对比.将两类屈光不正分别行不同年龄、性别和屈光程度组的统计分析.结果戴矫正眼镜AC/A比率均值,近视眼为3?47±1?94△/D,远视眼为2?01±1?43△/D,二者和其分别同正常人间均有极显著的差异(P<0?01).近视眼和远视眼的AC/A比率大体上随年龄的增长和屈光度的增高而减少.近视眼AC/A比率与性别无关(P>0?05),远视眼女性显著高于男性(P<0?05).平时戴镜3个月以上者,AC/A比率趋于正常.结论经矫正的屈光不正患者AC/A比率均值,近视眼高于正常,远视眼低于正常.平时戴矫正眼镜能促使辐辏与调节恢复或接近平衡“,”Abstract Objective To find out the AC/A ratio average value and characteristic of ametrope. Methods The AC/A ratio of 270 cases of ametrope were detected with TSJ-3 synoptophore. After mydriasis and optometry, we detected the AC/A ratio again. Twice detection had been done first at the time when they were naked eyes, second when they wear orthotic glasses. They were divided into two groups according to whether they wear orthotic glasses or not at ordinary times. Their AC/A ratios were compared to that det...