角膜塑形镜控制学龄儿童近视发展的效果分析

目的观察角膜塑形镜治疗学龄儿童近视的效果。方法将98例学龄期近视儿童随机分为角膜塑形镜组48例和框架镜组50例，戴镜前和戴镜后2年检查眼轴长度、眼屈光度，评价角膜塑形术控制近视进展的作用。结果角膜塑形镜组和框架镜组治疗前眼轴长度分别为（22．48±1．53）mm和（22．46±1．48）mm，治疗后眼轴长度分别平均增长（0．39±0．06）mm和（0.62±0．12）mm，两组比较差异有统计学意义（P〈0．05）；角膜塑形镜组和框架镜组治疗前屈光度（等效球镜）分别为（-1．75±0．50）DS和（-1．75±0．25）DS，治疗后屈光度分别增加（0．50±0．25）DS和（1．25±0．50）DS，两组比较差异有统计学意义（P〈0．05）。结论角膜塑形镜可在一定程度上控制近视进展，眼轴长度和屈光度可作为观察近视进展情况的有效指标。

Effect analysis of orthokeratology lens control myopia development in school-age children

Objective To observe the effect of orthokeratology lens control myopia development in school-age children. Methods 98 cases of school-age children with myopia were divided into orthokeratology lens group （n=48） and frame mirror group （n=50）,the global axial length and diopters were evaluated before and 2 year after the treatments,the role of orthokeratology lens control myopia development were evaluated. Results The global axial length in orthokeratology lens group and frame mirror group was （22.48±1.53） mm and （22.46±1.48） mm respectively before treatment,and it increase average of global axial length was （0.39±0.06） mm and （0.62±0.12） mm respectively after treatment,the difference was significant between the two groups （P〈0.05）.Diopter in orthokeratology lens group and frame mirror group was （-1.75±0.50） DS mm and （-1.75±0.25） DS respectively before treatment,and increase average of diopter was （0.50±0.25） DS and （1.25±0.50） DS respectively after treatment,the difference was significant between the two groups （P〈 0.05）. Conclusion Orthokeratology lens can effectively control the progression of myopia in school-age children,the global axial length and diopter can be used to monitor the progression of myopia.