【摘要】 目的探讨角膜地形图引导的飞秒激光辅助的准分子激光原位角膜磨镶术(FS-LASIK)对近视眼患者术后视觉质量的影响。方法选取2018年7月-2020年6月收治的近视眼患者98例(196眼),随机将其划分成参照组、研究组等两组,其中参照组49例(98眼)应用常规模式WFO的FS-LASIK治疗。研究组49例(98眼)应用角膜地形图引导的FS-LASIK治疗。比较两组视力恢复情况、角膜高阶像差[总高阶像差(HOA)、彗差(Coma)、球差(SA)]及调制传递函数值(MTF)。结果术后3个月两组裸眼视力、屈光度与术前相比均有明显改善(P<0.05),且研究组改善效果较参照组优(P<0.05);研究组HOA、Coma、SA与术前相比均明显较高(P<0.05),但研究组上述指标均明显较参照组低(P<0.05);研究组MTF增高程度较参照组明显(P<0.05)。结论对近视患者实施角膜地形图引导的FS-LASIK治疗,对患者视力及视觉质量的改善效果较佳。更多还原

【Abstract】 Objective To investigate the effect of corneal topography guided femtosecond-excimer laser in situ keratomileusis(FS-LASIK) on postoperative visual quality of myopic patients. Methods A total of 98 cases(196 eyes) of myopia patients in our hospital from July 2018 to June 2020 were selected and randomly divided into two groups, 49 cases(98 eyes) in the reference group were treated with FS-LASIK guided by WFO, 49 cases(98 eyes) in the study group were treated with FS-LASIK guided by corneal topography. The visual acuity recovery, corneal higher-order aberrations [total higher order aberrations(HOA), Coma, spherical aberration(SA)] and modulation transfer function(MTF) were compared between the two groups. Results Three months after operation, the uncorrected visual acuity and diopter of the two groups were significantly improved(P<0.05), and the improvement effects of the study group were better than those of the reference group(P<0.05); HOA, Coma and SA in the study group were significantly higher than those before operation(P<0.05), but the above indexes in the study group were significantly lower than those in the reference group(P<0.05); the MTF of the study group was significantly higher than that of the reference group(P<0.05). Conclusions FS-LASIK guided by corneal topography can improve the visual acuity and visual quality of myopic patients.更多还原