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Q值引导的机械板层刀与飞秒激光制瓣的SBK术后角膜像差比较
引用本文:李颖,俞颂平,陈旭阳,吴丽红,应佳. Q值引导的机械板层刀与飞秒激光制瓣的SBK术后角膜像差比较[J]. 中华眼视光学与视觉科学杂志, 2015, 17(9): 549-553. DOI: 10.3760/cma.j.issn.1674-845X.2015.09.008
作者姓名:李颖  俞颂平  陈旭阳  吴丽红  应佳
作者单位:Li ying,Yu Songping,Chen Xuyang,Wu Lihong,Ying Jia
摘    要:目的比较Q值引导的机械刀制瓣前弹力层下角膜磨镶术(OUP-SBK)和飞秒激光制瓣SBK(Femto-SBK)2种手术方式对术眼角膜像差的影响。方法回顾性病例对照研究。138例患者(276眼)根据制瓣方式不同分为2组:OUP-SBK组77例,其中按术前等效球镜度(SE)分为低度近视组17例(SE≤-3.00 D),中度近视组29例(-3.00 D<SE<-6.00 D),高度近视组31例(SE≥-6.00 D);Femto-SBK组61例,其中低度近视组13例,中度近视组24例,高度近视组24例。均采用Q值引导的准分子切削模式手术,分别于术前及术后1、3、6个月测量术眼角膜的总高阶像差、球差、水平彗差、垂直彗差、水平三叶草和斜向三叶草数据,采用方差分析和独立样本t检验进行统计分析。结果术后低度近视组角膜总高阶像差、球差、垂直彗差高于术前(F=32.4、14.6、4.6,P<0.01);中度近视组角膜总高阶像差、球差、水平彗差、垂直彗差、水平三叶草术后高于术前(F=40.9、22.5、34.0、2.7、24.4,P<0.05);高度近视组角膜总高阶像差、球差、水平彗差、垂直彗差OUP-SBK组明显高于Femto-SBK组(F=15.4、3.9、10.4、4.8,P<0.05)。结论对于高度近视患者,飞秒激光制瓣较角膜刀制瓣产生的像差少,能给患者提供更优质的视觉质量。

关 键 词:波前像差  角膜磨镶术  激光原位  飞秒激光  角膜磨镶术  前弹力层   机械板层刀  
收稿时间:2015-01-21

Comparison of corneal aberrations after microkeratome and femtosecond laser sub-Bowman′s keratomileusis with a customized Q-factor
Li ying,Yu Songping,Chen Xuyang,Wu Lihong,Ying Jia. Comparison of corneal aberrations after microkeratome and femtosecond laser sub-Bowman′s keratomileusis with a customized Q-factor[J]. Chinese Journal of Optometry Ophthalmology and Visual Science, 2015, 17(9): 549-553. DOI: 10.3760/cma.j.issn.1674-845X.2015.09.008
Authors:Li ying  Yu Songping  Chen Xuyang  Wu Lihong  Ying Jia
Abstract:ObjectiveTo compare the changes in aberrations following microkeratome sub-Bowman′s keratomileusis (SBK) (OUP-SBK) and femtosecond laser SBK (Femto-SBK) with customized Q-factor. MethodsThis was a retrospective clinically controlled study. One hundred thirty-eight patients (276 eyes) were divided into two groups: one group (77 cases) was treated with Moria One-Plus SBK and the other group (61 cases) was treated with femtosecond laser SBK. The former group was divided into subgroups with spherical equivalents that included low myopia (17 cases) (≤-3.00 D), moderate myopia (29 cases) (>-3.00 D, <-6.00 D) and high myopia (31 cases) (≥-6.00 D).The latter group included low myopia (13 cases) (≤-3.00 D), moderate myopia (24 cases) (>-3.00 D, <-6.00 D) and high myopia (24 cases) (≥-6.00 D). Both groups had customized Q-factors. Total higher order aberrations (HOA), spherical aberrations (C40), horizontal coma (C31), vertical coma(C3-1), horizontal trefoil (C33) and oblique trefoil (C3-3) were measured preoperatively and 1 month, 3 months and 6 months after surgery. Data were analyzed using repeated measured ANOVA, an independent samples t test. ResultsAfter surgery for the low myopia group, total corneal HOA, C40 and C3-1 were increased compared to preoperation (F=32.4, 14.6, 4.6, P<0.01); for the moderate myopia group, the total corneal HOA, C40,C31, C3-1, C33 was increased compared to preoperation (F=40.9, 22.5, 34.0, 2.7, 24.4, P<0.05); for high myopia, the total corneal HOA, C40, C31 and C3-1 were better for Femto-SBK than for OUP-SBK (F=15.4, 3.9, 10.4, 4.8, P<0.05). ConclusionFor patients with high myopia, the increase in the degree of aberrations after Femto-SBK is smaller than that after OUP-SBK. Femto-SBK can provide patients with better visual quality.
Keywords:Wavefront aberration  Keratomileusis  laser in situ  Femotosecond laser  Keratomileusis  sub-Bowman′s  Microkeratome  
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