佩戴角膜塑形镜及框架眼镜对青少年调节反应的影响

目的探讨青少年佩戴角膜塑形镜和框架眼镜后调节反应的变化及两者的差异。方法青少年近视患者共76例，排除屈光参差、眼底疾患等因素后，根据患儿依从性及家长意愿，34例患者佩戴角膜塑形镜，42例患者佩戴单焦点框架眼镜。所有患者矫正残余屈光不正，用分光检影装置测定初次及戴镜1年后双眼的调节反应，并计算相应的调节滞后量。结果共74例完成该研究，初次测定两组调节反应、调节滞后无统计学差异（P〉0．05）。佩戴角膜塑形镜1年后调节反应、调节滞后与初次无显著差异（P〉0．05），佩戴框架眼镜1年后调节反应、调节滞后与初次测定有统计学差异（P〈0。05）；1年后佩戴角膜塑形镜组调节反应大于框架眼镜组，调节滞后小于框架眼镜组，两者差异有统计学意义（P〈0．05）。结论青少年近视眼佩戴角膜塑形镜1年后调节反应明显大于佩戴框架眼镜者，调节滞后明显小于佩戴框架眼镜者，在延缓近视进展方面，角膜塑形镜有一定的作用。

Comparison of the Impact on Accommodation Response after Wearing Orthokeratology Lenses or Sepectacles.

Objective To discuss the difference in accommodation reponses between juvenile myopes who wore orthokeratology and who wore frame glasses. Methods Seventy - four juvenile myopes were enrolled in the study. After excluding antimetropia and fundus diseases, thirty - four subjects wore orthokeratology and forty - two wore frame glasses according to the compliance of children and their parents. All subjects wore correcting lens according to their refractive error. Accommodation reponses were measured using dynamic reti- noscopy apparatus with semi - reflective mirror at the first time and again after one year. Accommodation lag was calculated by statistical methods. Results Seventy - four subjects completed the experiment. There was no significant difference in accommodation responses and accommodation lag between two groups at the first measuring（ P 〉 0.05 ）. After one year, accommodation reponses and lags did not signifi- cantly differ from the first measuring in wearing orthokeratology groups （ P 〈 0.05 ）. On the contrary accommodation reponses and lags did not significantly differ from the first measuring in wearing frame glasses groups after one year（P 〈 0.05）. Compared to frame glasses, ac- commodation reponses were significantly greater and accommodation lags were smaller in wearing orthokeratology after one year （P 〈 0. 05）. Conclusion After one year, the accommodation responses of wearing orthokeratology were larger than those of wearing specta- cles,and the accommodation lags of wearing orthokeratology were smaller than those of wearing spectacles. Our results indicated that or- thokeratology may play a role in controlling the development of juvenile myopia.