目的：比较SMILE和 LASIK术后早期视觉质量的差异性。

方法：选取2017-02/2018-02在本院进行SMILE近视患者78例156眼，选取同期在本院行LASIK近视患者80例160眼，术后随访3mo，观察患者手术疗效、高阶像差和对比敏感度(CS)情况。

结果：术后1、3mo ，SMILE组患者中央角膜厚度变化率分别为(-14.48±2.67)%、(-13.54±2.90)%，低于LASIK的(-17.92±2.85)%、(-15.63±2.71)%，眼压变化率分别为(-27.08±3.64)%、(-24.41±3.28)%，均低于LASIK组的(-29.26±3.81)%、(-27.01±3.62)%(P<0.05)，SMILE组患者总高阶像差、彗差均低于LASIK组(P<0.05)； 术后1mo明视下眩光CS空间频率为1.5、12.0及18.0时SMILE组(1.86±0.21、1.52±0.23、0.91±0.14)高于LASIK组(1.71±0.20、1.41±0.25、0.81±0.12)(P<0.05)。

结论：SMILE对患者高阶像差影响低于LASIK术，且患者术后早期视觉质量更好。

METHODS: From February 2017 to February 2018, 78 patients(including 156 eyes)with SMILE myopia were enrolled in our hospital. Eighty patients(160 eyes)who underwent LASIK myopia in the same period were selected. All patients were followed up for three times. Months were observed for surgical outcomes, high-order aberrations, and contrast sensitivity(CS)status.

RESULTS: At 1mo and 3mo postoperatively, the central corneal thickness change rate in the SMILE group was(-14.48±2.67)%,(-13.54±2.90)% lower than that of LASIK(-17.92±2.85)%,(-15.63±2.71)%, and intraocular pressure changes. The rates were(-27.08±3.64)% and(-24.41±3.28)% were lower than those in the LASIK group(-29.26±3.81)% and(-27.01±3.62)%(P<0.05). The total high-order aberrations of the SMILE group were the sputum difference was lower than that of LASIK group(P<0.05). The SMILE group values were(1.86±0.21),(1.52±0.23)and(0.91±0.14)when the spatial frequency of glare CS was 1.5, 12.0 and 18.0 at 1mo after operation was higher than the LASIK group(1.71±0.20),(1.41±0.25),(0.81±0.12)(P<0.05).

CONCLUSION: SMILE has a lower effect on patients with higher-order aberrations than LASIK, and the early visual quality is better.