眼调节幅度与近视眼的关系研究

目的　评价不同屈光状态下的眼调节幅度特点 ,分析调节幅度在近视眼的发生发展中的作用 ,进一步明确眼调节幅度与近视眼的因果关系。方法　被测者共 3 5人 ,其中男 17人(4 8 6% ) ,女 18人 (5 1 4% ) ,年龄 19～ 3 5岁 ,平均 2 6 49± 3 3 3岁。所有被测者均进行规范的主觉验光 ,每眼矫正视力均≥ 1 0。移近法测得左眼调节幅度 ,采用SPSS9 0应用软件包对不同分组进行比较分析。结果　①近视组AMP明显高于正视组 ;②正视组、轻度近视和中度近视组三组之间AMP存在显著差异 ,其中正视组最低 ,其次是轻度近视和中度近视 ;③正视组、迟发性近视组和早发性近视组三组之间AMP存在显著差异 ,其中正视组最低 ,其次是迟发性近视和早发性近视。④对调节幅度和近视屈光度做相关分析后 ,可见AMP随着近视屈光度的不断加深呈现上升趋势 ,直线回归方程为AMP =9 95 2 -0 764 屈光度。⑤将AMP和近视发生与否做Logistic回归分析 ,结果认为AMP可能是近视发生的原因之一。结论　高调节幅度可能是引发近视的原因之一 ,而弱的交感神经和强的副交感神经可能是引发高调节幅度 ,继而引发近视的解剖学因素。

The relationship between amplitude of accommodation and myopia

Objective To study amplitude of accommodation in different refraction group and evaluate the relationship between amplitude of accommodation and late-on-set myopia.To assess the role of amplitude of accommodation made in myopia development and progresssion.Methods The study comprised 35 eyes of myopia and emmetropia.Refraction measured with MPMVA,amplitude of accommodation measured with push-up test.The main statistic soft ware SPSS9.0 was used.Results AMP was emmetropia,low myopia and medium myopia.AMP increased with the refraction increasing.There was lowest AMP in emmetropia and highest AMP in carly onsct myopia.AMP play important rolc in myopia onsct and progression,AMP=9.952-0.764*refraction.The result of logistic analysis show AMP may be one of the reason of the myopia.Conclusions high AMP may be play roles in myopia onset,and strong para-sympathcti may bc the anatomy rcason of myopia.