文档介绍：ALASIK,WLASIK和SLASIK术后疗效的对比分析
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【摘要】目的:观察非球面切削准分子激光原位角膜磨镶术(ALASIK)、波前像差引导的准分子激光原位角膜磨镶术(WLASIK)及标准准分子激光原位角膜磨镶术(SLASIK)术后患者的临床疗效,对比分析ALASIK、WLASIK和SLASIK在低、中、高度屈光范围的安全性和有效性,为临床对不同屈光度近视患者提高术后视觉质量选择个体化的、合适的手术术式提供理论依据。方法:选取拟做准分子激光原位角膜磨镶术的近视眼患者136例268眼,按屈光度分为低度(),中度(~) 和高度(~) 3组,每组柱镜度数均,各组再随机分成3组,一组行ALASIK,一组行WLASIK,另外一组行SLASIK,~;检测指标包括术后视觉满意度调查、裸眼视力、Orbscan眼前节分析系统测量角膜非球面系数(Q值)及波前像差(6mm瞳孔直径)分析;随访时段为术前、术后1mo、术后3mo及术后6mo;观察分析各组手术前后各检测指标的变化及相关性。结果:术后6mo时,术后视觉满意度调查,A
LASIK组和WLASIK组优于SLASIK组,差异有统计学意义()。在中度组,WLASIK组视力明显好于ALASIK组和SLASIK组,差异有统计学意义(),ALASIK组角膜非球面形态保持更好Q值差异有明显统计学意义(),WLASIK组角膜彗差和RMS值较ALASIK组和SLASIK组明显下降,差异有显著统计学意义(),ALASIK组角膜球差较WLASIK组和SLASIK组明显下降,差异有显著统计学意义()。结论:ALASIK、WLASIK和SLASIK均能有效地矫正近视和散光,手术效果安全、稳定。ALASIK和WLASIK术后的夜间视觉质量更好。ALASIK适合于低、中、高度近视患者,尤其能有效维持中度近视患者的角膜非球面性,减少中、高度,尤其是中度近视患者近视患者术后球差的增加。WLASIK能显著提高中度近视患者的术后视力,减少中、高度近视患者,尤其是中度近视患者术后角膜彗差和总高阶像差RMS值的增加。屈光不正患者选择ALASIK或WLASIK有助于提高术后视觉质量。
【关键词】准分子激光原位角膜磨镶术;波前像差;非球
AbstractAIM: To observe the changes of early retrospective clinical study between aspherical oblation excimer laser in situ keratomileusis(ALASIK), the wavefrontguided laser in situ keratomileusis(WLASIK) and the standard laser in situ keratomileusis(SLASIK) for treatment of myopia and provide the directions to selecte individuation surgery for the different diopters of spherical refractive,and pare and analyze t
he safety and efficiency of ALASIK,WLASIKand WLASIK for treatment of : Two hundreds and sixtyeight eyes of 136 cases myopia were enrolled and presented into three groups according to their diopters of spherical refractive error(low:<;middle:<;high:<).The cases in each group were subdivided into three groups again according to their surgery method: ALASIK,WLASIK and S which visual acuity,diopter,offer Q value,high