SMILE手术治疗近视及近视合并散光术后1a视觉质量分析
International Eye Science（2021）
Department of Ophthalmology
Abstract
目的:探讨飞秒激光小切口角膜基质透镜取出术(SMILE)治疗近视及近视合并散光术后1a视觉质量的变化特点.方法:回顾性研究.纳入2019-07/12行SMILE手术的近视及近视合并散光患者85例85眼,术后随访1a,观察裸眼远视力(UDVA)、矫正远视力(CDVA)、等效球镜度(SE)等情况,评估手术的有效性、安全性及可预测性,并测量全角膜高阶像差及客观视觉质量.结果:术后1a,本组患者SMILE手术有效性指数1.08,其中84眼UDVA(99％)达到或高于术前CDVA,22眼(26％)UDVA高于术前CDVA 1行;手术安全性指数1.04,其中59眼(69％)CDVA与术前CDVA一致,24眼(28％)CDVA较术前CDVA增加1行,2眼(2％)CDVA较术前CDVA增加2行;85眼(100％)等效球镜度均在±0.50D范围内;术前预期矫正SE与术后实际矫正SE呈高度线性相关(Y=0.9949X-0.0033;R2=0.9977);本组患者6mm瞳孔直径下全角膜总高阶像差(HOA)、球差、彗差均较术前增加(P<0.001);调制传递函数截止频率(MTFcutoff)和斯特列尔比(SR)均高于术前(P<0.05).结论:SMILE手术治疗近视安全、有效、稳定、预测性良好,矫正中低度散光准确性好,术后视网膜成像质量优于术前.
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Key words
myopia,femtosecond laser small incision lenticule extraction,corneal higher-order aberration,visual quality
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