SMILE and Wavefront-Guided LASIK Out-Compete Other Refractive Surgeries in Ameliorating the Induction of High-Order Aberrations in Anterior Corneal Surface

Table 3

The changes in anterior corneal HOAs with 6 mm diameter central corneal zone (mean ± SD, μm).

Change	LASIK	WF-LASIK	FS-LASIK	SMILE	value
Total HOAs	0.11 ± 0.09	0.07 ± 0.06	0.10 ± 0.60	0.07 ± 0.07	<0.001
SA	0.23 ± 0.17	0.19 ± 0.20	0.29 ± 0.21	0.16 ± 0.16	<0.001
Horizontal coma	0.02 ± 0.35	−0.06 ± 0.22	0.02 ± 0.49	0.08 ± 0.18	0.002
Vertical coma	−0.10 ± 0.32	−0.02 ± 0.36	−0.18 ± 0.54	−0.22 ± 0.22	<0.001

One-Way ANOVA test was used for comparisons across the groups. LASIK: laser in situ keratomileusis; WF-LASIK: wavefront-guided laser in situ keratomileusis with iris registration; FS-LASIK: femtosecond laser-assisted laser in situ keratomileusis; SMILE: small incision lenticule extraction; HOAs: higher-order aberrations; SA: spherical aberration.