目的:了解学龄前儿童屈光状态纵向变化,为防治屈光不正提供依据。方法:应用美国伟伦Suresight手持自动验光仪进行屈光检查并进行4a追踪观察。结果:远视、复性远视散光随年龄增长逐渐减少,正视和单纯近视随年龄增长逐渐增多。散光的轴向较稳定。从各年龄球镜、柱镜均数可看出随着儿童年龄增长其屈光值逐渐减低。统计得到了各年龄球柱镜的参考值范围。结论:了解各年龄的屈光状况非常必要,学龄前儿童屈光筛查应成为儿童眼保健的重点,且筛查标准应重视年龄因素。

·AIM:To research the refractive changes in preschool children,to provide information for the prevention and treatment of the ametropia.·METHODS:Totally 466 children aged 3 years old were examined with Suresight hand-held refractometer and followed up for 4 years.·RESULTS:Hypermetropia and the complex hypermetropic astigmatism decreased with the age increase.Emmetropia and spherical myopia increased with the age increase.The axis of astigmatism was quite stable.The spherical diaopter and the cylinder diopter decreased with the age increase.The referent value of all aged groups were gained.·CONCLUSION:It is necessary to investigate the development of refraction in children.Refraction are very important in children’s eye care and the criteria of abnormal refraction in preschool children identified by the age should be paid more attention.·

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