波前像差引导的LASIK和传统LASIK术后波前像差的比较  

Comparison Study of Aberration between Wavefront Guided LASIK and Traditional LASIK

作　　者：蔚伟[1] 徐凤[1] 赵少贞[2] 

机构地区：[1]大港油田总医院眼科,天津300280 [2]天津医科大学眼科中心

出　　处：《天津医药》2009年第9期750-752,共3页Tianjin Medical Journal

摘　　要：目的:比较波前像差引导的准分子激光原位角膜磨镶术(LASIK)和传统LASIK矫正近视术后6个月时波前像差的变化。方法:将行波前像差引导的LASIK的近视患者69例(138眼)作为试验组,行传统LASIK的近视患者69例(138眼)作为对照组,按屈光度分为低度、中度和高度3组,各23例(46眼)。对试验组和对照组术后6个月的视力和波前像差进行统计学分析。结果:(1)试验组、对照组术后6个月时视力在1.5～2.0者分别为55眼(39.86%)、22眼(15.94%),差异有统计学意义(P<0.05)。(2)术后6个月,试验组高阶像差的RMS值(RMSh)较对照组低,差异有统计学意义(P<0.05)。(3)术后6个月,试验组低度近视Z6和Z12较对照组低,中度近视Z6、Z7和Z12较对照组低,高度近视Z6和Z12较对照组低,差异有统计学意义(P<0.05)。结论:波前像差引导的LASIK术后较传统LASIK有更好的裸眼视力。波前像差引导的LASIK在矫正高阶像差尤其是三阶和四阶像差方面较传统LASIK有优势。objective：To verify whether there are differences in visual outcome, including higher order aberrations, after performing laser in situ keratomileusis with conventional ablation and wavefront-guided ablation in myopia. Methods：One hundred and thirty-eight eyes of 69 myopic subjects were selected as trial group, which underwent wavefront-guided LASIK and another 138 eyes of 69 myopic subjects were selected as control, which underwent conventional LASIK. In each group, the eyes were divided into three subgroups according to myopia diopter. The visual outcome and higher order aberrations were compared at 6 months postoperatively. Results：After 6 months, 39.86% of eyes achieved 1.5 or better uncorrected visual acuity （UCVA） in trial group while 15.94% in control group （P 〈 0.05）. After 6 months, the outcome of whole wavefront aberrations and the higher order aberrations were statistically lower in the trial group than that of control group （P 〈 0.05）. There was a low myopia of Z6 and Z 12 in the trial group than that of control group postoperatively; Z6, Z7 and Z 12 of moderate myopia were lower in the trial group than the control group postoperatively; Z6 and Z12 of high myopia were lower in the trial group than the control group postoperatively （P 〈 0.05）. Conclusion：The vision results of wavefront-guided LASIK are better than the conventional LASIK. The wavefront-guided LASIK has more advantage in correcting the whole aberration, the higher order aberration especially the third and the fourth order aberration than conventional LASIK.

关 键 词：角膜磨镶术 激光原位 近视 散光 波前像差 

分 类 号：R779.6[医药卫生—眼科] R779.63[医药卫生—临床医学]