准分子激光原位角膜磨镶术治疗非对称角膜近视眼的临床观察  

Clinical observation of laser in situ keratomileusis for myopia with unsymmetrical corneal topography

作　　者：刘兵[1] 陈威[1] 赵蓉[1] 何佳[1] 文香[1] 

机构地区：[1]中国人民解放军空军总医院眼科,北京100036

出　　处：《临床眼科杂志》2009年第5期392-394,共3页Journal of Clinical Ophthalmology

摘　　要：目的评价准分子激光原位角膜磨镶术(LASIK)通过非对称切削初次治疗角膜地形图为非对称的近视眼的疗效。方法应用美国雷赛准分子激光机(5.3版;300Hz),采用AstraPro Planner2.2Z个体化切削软件进行LASIK手术。对手术前后视力、屈光状态和角膜非球面系数(Q值)进行对比分析。结果本组157例(294只眼),平均术前裸眼视力0.11±0.06(0.02～0.5),等效球镜(-6.01±1.87)D,Q值-0.19±0.18;随访(6.47±5.73)(1～28)个月;术后平均裸眼视力1.12±0.16(0.4～1.5),等效球镜(-0.22±0.72)D;Q值0.40±0.45。结论美国雷赛AstraPro Planner2.2Z角膜地形图引导的LASIK进行的非对称切削,初次治疗角膜地形图为非对称性的近视眼安全、有效,术后屈光状态稳定,同时节省角膜组织,提高视觉质量。Objective To evaluate the clinical efficacy of laser in situ keratomileusis （LASIK） in a unsymmetrical ablation mode for myopia with unsymmetrical corneal topography. Methods The Laser Sight SLX laser（5.3,300 Hz） and AstraPro Planner 2.2 Z software were used in LASIK. The decimal visual acuity, refraction and corneal asphericity value （Q-value） were observed and analyzed preoperatively and postoperatively. Results 157 patients （294 eyes） were treated. Preoperative mean uncorrected visual acuities （UCVA） was 0.11 ± 0.06 （ 0.02 ± 0.5 ） , spherical equivalent （SE） was （ - 6.01 ± 1.87 ） D , and Q-value was - 0. 19 ±0.18. Final follow-up was 6.47 ± 5.73 （ 1 ± 28 ） months. Postoperative mean uncorrected visual acuity （ UCVA ） was 1.12 ± 0.16 （ 0.4 ± 1.5 ）, SE was （ - 0.22 ± 0.72 ） D, and Q-value was 0.40 ± 0. 45. Conduslon Primary topography-guided LASIK with AstraPro Planner 2.2 Z custom ablation planning software in an unsymmetrical ablation mode was safe, effective, and stably refractive for the myopia with unsymmetrical corneal topography. Postoperative visual quality was improved, and corneal tissue was saved.

关 键 词：近视眼 准分子激光原位角膜磨镶术 角膜地形图 

分 类 号：R779.63[医药卫生—眼科] R-05[医药卫生—临床医学]