目的:探讨近视眼儿童AC/A率的特点。方法:将研究对象分正常眼组和近视眼组,近视眼组按近视程度分轻、中、高度近视眼三组,用同视机分别测量其AC/A率并进行比较。追踪观察记录平时戴镜情况,分持续戴镜、未戴镜和间断戴镜三组,每组选取30例,测量其AC/A率。结果:各近视眼组AC/A率高于正常眼组,而高度近视眼组AC/A率高于轻、中度近视眼组;近视眼持续戴镜组AC/A率均值低于未戴镜组及间断戴镜组。结论:未矫正的近视眼儿童AC/A率的异常是对调节和集合不协调的一种适应,同时AC/A的增加又导致了近视眼的深度化。而近视眼通过戴镜矫正一段时间后,不协调的辐辏和调节间的关系得以重新调整,AC/A率逐步下降。

AIM:To study the relationship between the AC/A ratio and myopia in children. METHODS:All the subjects were divided into emmetropia group and myopia group which were divided into three groups(mild myopia,moderate myopia,high myopia) according to the degrees of myopia. The AC/A ratio was measured with a synoptophore,and the results were compared. The status of wearing glasses were followed up and divided into three groups:continued wearing glasses,non-wearing and discontinuous wearing,each with 30 cases.RESULTS:The AC/A ratio was higher in the myopic groups than in the control group. AC/A ratio of the high myopia group was higher than that of mild to moderate myopia group; AC/A ratio of continued wearing glass group was lower than that in non-wearing glass group and in discontinuous wearing glass group.CONCLUSION:The anomaly of AC/A ratio in children of uncorrected myopia seems to be an adaptatio to the incoordination of regulation and collection. And the increase of AC/A ratio can lead to an aggravation of myopia.The disharmonious relationship between converge and regulation can be readjusted. AC/A ratio decrease gradually.

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