中文摘要：

目的 观察分析角膜塑形镜对青少年近视调节各参数的影响及临床意义。方法 选取在视光门诊规范验配、随诊、配戴角膜塑形镜的8-16岁青少年近视患者31例（62眼）,其中男16例,女15例,平均等效球镜（-3.71±0.90）D。在配戴角膜塑形镜前后,应用综合验光仪对近视患者测定调节参数,包括正相对调节量、负相对调节量、调节幅度、调节反应（调节滞后量）及梯度性AC/A;对配戴前后的相关数据进行配对t检验。结果 配戴角膜塑形镜前后调节幅度（AMP）分别为（＋7.94±1.44）D和（＋7.06±1.19）D（t=7.94,P〈0.05）;调节滞后量（FCC法）分别为（＋0.90±0.21）D和（＋0.15±0.26）D（t=13.79,P〈0.05）;梯度性AC/A分别为（4.05±0.83）和（3.03±0.63）（t=8.07,P〈0.05）。结论 青少年近视眼配戴角膜塑形镜后调节参数趋于正常,配戴后调节滞后量减少,AC/A值降低,患者的调节与集合的关系更加协调,为延缓近视的进展提供了一定依据。

英文摘要：

LAN Fang-fang;ZHAO Wu-xiao;GAN Lu;Department of Optometry,the People＇s Hospital of Guangxi Zhuang Autonomous Region; Objective To study the effect and the clinical significance of orthokeratology on accommodative parameters in juvenile myopia. Methods Thirty-one teenager myopia patients（ 62 eyes） aged 8 ~ 16 years in our center were recruited in this study. Among these subjects there were 16 males and 15 females. The average spherical equivalent refraction was（-3. 71 ± 0. 90） D. Before and after the patients were orthokeratology,their accommodative parameters were measured by phoropter,including positive and negative relative accommodation,accommodative amplitude（ AMP）,accommodative response（ accommodative lag）,and gradient AC / A. Paired t-testing was used to analyze the related data. Results Orthokeratology restored the accommodative parameters in teenager myopia patients.AMP reduced from（ ＋ 7. 94 ± 1. 44） D before wearing orthokeratology to（ ＋ 7. 06 ± 1. 19） D after wearing orthokeratology（ t = 7. 94,P〈0. 05）; Accommodative lag measured by FCC method reduced from（ ＋ 0. 90 ± 0. 21） D before wearing orthokeratology to（ ＋ 0. 15 ± 0. 26） D after wearing orthokeratology（ t = 13. 79,P〈0. 05）. Gradient AC / A reduced from（ 4. 05 ± 0. 83） before wearing orthokeratology to（ 3. 03 ± 0. 63） after wearing orthokeratology（ t =8. 07,P〈0. 05）. Conclusion The accommodative parameters tend to be normal after wearing orthokeratology in teenager myopia patients,which makes the patients＇ accommodation and convergence more harmonious delays the development of teenager myopia.