小光斑飞点扫描准分子激光原位角膜磨镶术治疗LASIK术后残余近视  

Laser in situ Keratomileusis Retreatment for Regression Using a Flying Spot Scanning Excimer Laser System

作　　者：米生健 段宇辉 李金科 

机构地区：[1]武警陕西省总队医院眼科,西安市710054

出　　处：《中国激光医学杂志》2009年第5期305-307,共3页Chinese Journal of Laser Medicine & Surgery

摘　　要：目的评价小光斑飞点扫描准分子激光原位角膜磨镶术治疗LASIK术后残余近视的疗效及安全性。方法对75例93只眼LASIK术后残余近视的患者行二次LASIK手术,全部采用掀瓣的手术方式,两次手术间隔(7.18±3.56)个月。术后平均随访超过6个月。结果二次LASIK术后平均裸眼视力较术前显著提高(P<0.01),术后裸眼视力与术前最佳矫正视力比较,差异无显著意义(P>0.05);术后6个月时屈光度在±0.5D以内者为90只眼(96.8%),20只眼(21.5%)术后裸眼视力大于术前最佳矫正视力。无危及视力的并发症出现。结论小光斑飞点扫描准分子激光原位角膜磨镶术治疗LASIK术后残余近视安全、效果好。Objective To evaluate the effectiveness and safety of laser in situ keratomileusis （LASIK） for residual myopia and astigmatism using a scanning-spot laser. Methods Ninety-three myopia eyes （from 75 patients） underwent secondary LASIK at （7. 18 ± 3.56） months after primary LASIK procedure. Following up was 6 months. The statistical analysis of the data was made by the paired sampleit test. Results After retreatment, the uncorrected visual acuity （UCVA） improved significantly （P 〈 0. 01 ）, the UCVA after secondary LASIK and the best corrected visual acuity （BCVA） after primary LASIK were with no significant difference （P 〉 0. 05 ）. At 6 months, the residual refractive error within ± 0. 5 D was 96. 8% （90 eyes）. The rate of postoperative UCVA was 21.5 % （20eyes）, better than the preoperative BCVA. Severe complications were not observed. Conclusions The secondary LASIK is an effective and safe method to treat regression after primary LASIK using a flying spot scanning excimer laser system.

关 键 词：准分子激光原位角膜磨镶术 残余近视 矫正 

分 类 号：R779.63[医药卫生—眼科]