准分子激光双面式切削原位角膜磨镶术矫治超高度近视的临床研究  

The clinical research of surgery on high myopia by both side excimer laser in situ keratomileuses

作　　者：方学军[1] 徐艳春[2] 苏云[1] 莫俊柏 冯宇宁[1] 史天禹 

机构地区：[1]沈阳爱尔眼视光科医院,沈阳110003 [2]中国医科大学附属第一临床医院眼科

出　　处：《中国实用眼科杂志》2007年第11期1197-1201,共5页Chinese Journal of Practical Ophthalmology

摘　　要：目的探讨准分子激光双面式（Both side）切削原位角膜磨镶术（excimer laser in situ keratomileuses,LASIK）治疗超高度近视的可预测性、稳定性及安全性。方法对63例（121眼）超高度近视病人行改良的LASIK——双面式LASIK（Both side LASIK,BSL）,观察其术后视力、屈光度、角膜地形图情况,并同传统手术设计方案的安全系数及损伤指数进行比较。结果瓣膜面最大矫正屈光度达-6.0D,最深切削深度达44.62μm,角膜基质床剩余厚度（285.97±22.60）μm术后第一天裸眼远视力接近术前最佳矫正视力。术后1周、3周、1月、3月、6月裸眼视力均达到术前最佳矫正视力（P〉0.05）。术后1月屈光度平均为（-0.83±1.35）D,术后6月为（-0.87±0.47）D。角膜地形图均为规则形态。BSL手术的安全系数大于传统手术设计方式的安全系数（P〈0.05）,而损伤指数小于传统方式（P〈0.05）。结论准分子激光双面式切削原位角膜磨镶术治疗超高度近视是一种安全、有效的手术方法。Objective To discuss the predicability,stability and safety of surgery on high myopia by both-side excimer laser in situ keratomileuses（BSL）.Methods Observing the postoperative vision acuity,diopter and corneal Topography of 63 cases（121 eyes）which treated by BSL.The safety factor and injury index were compared with that of regular LASIK procedure.Results The maximal corrected diopter on cornea flap is-6.0D,the deepest ablation is 44.62μm,the average residual corneal stroma bed thickness is（283.87 ± 19.83） μm,the postoperative visual acuity is close to the best preoperative corrective vision,and 1 week,3 week,1 month,3 months,6 months of post-operation,the vision was better than before（P〉0.05）.At 1 month post-operation,the mean value of optometry is（-0.83 ± 1.35）D,and 6 months later was（-0.87 ± 0.47）D.Cornea topography is regular configuration.The safety factor of BSL was higher than that of regular procedure（P〈0.05）,the injnry index lower than that of regular procedure（P〈0.05）.Conclusion Surgery on

关 键 词：双面 准分子激光原位角膜磨镶术 超高度近视 

分 类 号：R779.63[医药卫生—眼科]