准分子激光原位角膜磨镶术后10年分析
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Ten years outcomes after laser in situ keratomileusis for myopia
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    目的: 评价准分子激光原位角膜磨镶术矫正近视术后10年的远期疗效和安全性-方法:对在本院接受准分子激光原位角膜磨镶术矫正近视术后10年的患者39例77眼进行裸眼视力-屈光度和最佳矫正视力及角膜厚度和Orbscan的检查-被随访眼按屈光度数分为2组:≤-6.0 D组和>6.0 D组,同时采用本院近期手术的近视眼患者的术前检查资料设为对照组-结果:术后10年组裸眼视力≥1.0的低-高度数组分别为63%,42%;<1.0分别为27%,58%;最佳矫正视力≥1.0的分别为98%,72%(P ≤ 0.05)-与术前相比,术后10年Orbscan提供的前-后表面的Diff值及3 mm-5 mm的Irreg及角膜厚度均有统计学差异(P < 0.01);术后10年组平均角膜厚度高于理论计算值,说明角膜基质值切削后有一定的增殖-结论:准分子激光原位角膜磨镶术治疗近视远期疗效稳定,手术安全性好-

    Abstract:

    Objective: To evaluate the long-term outcomes and safety of laser in situ keratomilesis (LASIK) for myopia. Methods: 39 cases (77 eyes), who underwent LASIK, were divided into two groups: myopia ≤-6.0 D and >-6.0 D . All patients were followed-up for 10 years after surgery. The main parameters for evaulation were predictability, stability, safety and efficacy. Uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), refractions, topography, corneal thickness and postoperative complications were recorded at 10 years. Results: At the 10th year, 63% of eyes with myopia ≤-6.0 D and 42% of eyes with myopia>-6.0 D had 1.0 or better UCVA, 27% of eyes with myopia ≤-6.0 D and 58% of eyes with myopia>-6.0 D had less than 1.0 UCVA . 98% of eyes with myopia ≤-6.0 D and 72% of eyes with myopia>-6.0 D had 1.0 or better BCVA(P < 0.05). There were significant differences at values of Diff value on anterior and posterior surface,Irreg at 3 mm and 5 mm zone obtained from Orbscan Ⅱand corneal thickness between pre- and post- operation(P < 0.01). Mean corneal thickness at the 10th year postoperatively was higher than attempted residual corneal thickness after ablation, it suggested that the stroma of cornea proliferated. Conclusion:LASIK surgery is safe and has predictable and stable results in refractive and visual outcomes in correcting myopia on long-term follow-up.

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王跃静,徐新荣,张玉娟,吴 静,张传伟.准分子激光原位角膜磨镶术后10年分析[J].南京医科大学学报(自然科学版),2010,(12):1760-1763

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