非球面个体化切削LASIK与传统LASIK术后视觉效果的比较

目的:比较优化的非球面切削准分子激光原位角膜磨镶术(optimized aspheric transition zone,OAT z-LASIK)与传统LASIK治疗近视的效果.方法:前瞻性对照研究接受OAT z-LLASIK治疗近视患者44例(88眼)和同期接受传统切削模式的LASIK手术患者50例(92眼)两组疗效,包括视力、残留屈光度、对比敏感度和眩光敏感度、角膜非球面Q值.结果:术后两组屈光度无显著差异(P＞0.05),3mo后OATz-LASIK组视力、对比敏感度和眩光敏感度、显著高于传统组(P＜0.05),Q值增加量显著低于传统组(P＜0.05).结论:OAT z-LASIK手术安全可靠,术后视觉效果优于传统LASIK.

Visual outcome after optimized aspheric transition zone laser situ keratomileusis compared to conventional LASIK

AIM:To compare the visual effects of optimized aspheric transition zone Laser in situ keratomileusis(OATz-LASIK) versus conventional Laser in situ keratomileusis(con.LASIK) .METHODS:In a prospective study 44 patients(88 eyes) underwent OATz-LASIK and 50 patients(92 eyes) received conventional LASIK surgery.Visual acuity,refractions?contrast sensitivity(CS) ,glare sensitivity(GS) ,and increment of Q-value after surgery were studied.RESULTS:All of operations on 94 cases were successful without severe complication after 3 months' follow-up.There was no significant difference in term of postoperative refractions between the two groups(t-test,P >0.05) .The uncorrected visual acuity(UCVA) ,CS,GS,and increment of Q-value of OATzgroup were significantly better compared to the tradition group 3 months after the surgery(P <0.05) .CONCLUSION:OATz-LASIK is a more effective procedure to improve visual quality compared to conventional LASIK.