摘要
目的前瞻性研究非球面切削引导准分子激光角膜屈光手术的临床疗效。方法将球镜-6.00D以下,柱镜0.00～2.00D的近视患者随机分成2组,Q调整组32例64眼行非球面切削引导准分子激光角膜屈光手术,对照组32例64眼行传统准分子激光原位角膜磨镶术(LASIK)。观察术后裸眼视力,残余屈光度,高阶像差中的慧差、球差、总高阶像差均方根增加值和满意度等指标。结果术后裸眼视力和残余屈光度两组比较差异无统计学意义,但Q调整组高阶像差的增加较对照组小,差异有统计学意义(P<0.05)。术后Q调整组患者的满意度情况比较,两组差异有统计学意义(P<0.05)。结论非球面切削引导准分子激光角膜屈光手术可以减少术后角膜波面像差的增加,尤其是减少球差增加,明显改善视觉质量。
Objective Laser in situ keratomileusis is latest and ideal refractive operation.Recently,the operative complications affecting the visual quality are concerned.This study was to investigate the clinical effectiveness of aspheric ablation guided excimer laser corneal refractive surgery.Methods The short-sighted patients with the sphere less-6.00 D and cylinder less-2.00 D were randomly divided into Q-Factor adjusted group（64 eyes of 32 cases）and conventional LASIK group（64 eyes of 32 cases）.Aspheric ablation guided excimer laser corneal refractive surgery was performed in the eyes of Q-Factor adjusted group,and conventional LASIK was performed as controls.Uncorrective visual acuity,residual diopter,increased volume of corneal wavefront（coma,SphAb and root mean square,RMS）after 1 month of operation were evaluated and compared between these two groups.Results No significant difference was found in uncorrective visual acuity and residual diopter in 1 month after operation between two groups（χ^2=0.36,P=0.583;χ^2=0.75,P=0.324）.However,the increased value in corneal wavefront（coma,sphAb and RMS）in Q-Factor adjusted group was less than that of conventional LASIK group（t=2.135,P=0.026;t=2.453,P=0.012;t=2.064,P=0.031;t=2.361,P=0.014）.Thirty-one patients were satisfied with the visual quality in Q-Factor adjusted group and 25 patients were satisfied in conventional LASIK group,showing a statistically significant difference between two group（χ^2=0.982,P=0.033）.Conclusion Aspheric ablation guided excimer laser corneal refractive surgery improve the visual quality by decreasing corneal wavefront,especially sphAb.
出处
《眼科研究》
CSCD
北大核心
2008年第8期617-620,共4页
Chinese Ophthalmic Research
