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Table 3 The variation of total wavefront aberrations with time in the SMILE and FS-LASIK group (mean ± SD)

From: Comparison of the optical quality after SMILE and FS-LASIK for high myopia by OQAS and iTrace analyzer: a one-year retrospective study

 

Preop

Post 1mo

Post 6mo

Post 12mo

p0-value

 

TWA

 

SMILE group

7.896 ± 2.842

1.910 ± 1.830*

2.014 ± 1.665*

2.156 ± 1.791*

0.115

FS-LASIK group

8.797 ± 3.459

1.965 ± 1.582*

1.766 ± 1.509*

2.376 ± 1.761*

p1-value

0.122

0.841

0.440

0.539

 
 

TLOA

 

SMILE group

7.756 ± 2.967

1.812 ± 1.778*

1.900 ± 1.585*

2.052 ± 1.687*

0.061

FS-LASIK group

8.780 ± 3.446

1.717 ± 1.476*

1.572 ± 1.444*

2.226 ± 1.683*

p1-value

0.099

0.783

0.293

0.623

 
 

THOA

 

SMILE group

0.565 ± 0.775

0.543 ± 0.512

0.594 ± 0.597

0.598 ± 0.665

0.115

FS-LASIK group

0.485 ± 0.384

0.789 ± 0.727*

0.714 ± 0.575*

0.741 ± 0.642*

p1-value

0.514

0.033

0.307

0.251

 
  1. SD: standard deviation. Preop: preoperative. Post 1mo: at 1 month postoperatively. Post 6mo: at 6 months postoperatively. Post 12mo: at 12 months postoperatively. TWA: total wavefront aberration. TLOA: total low-order wavefront aberration. THOA: total high-order wavefront aberration. p0 = p value of the difference for the pre and post-operative variation of TWA, TLOA and THOA between the SMILE and FS-LASIK group. p1 = p value of the difference in TWA, TLOA and THOA at each point of time between the SMILE and FS-LASIK group. When p < 0.05, the difference was statistically significant. * Compared with that before the surgery, p < adjusted alpha