Table 4.

Difference between preoperative and after 12 months after surgery of Corneal Wavefront Aberrometry.

	Pre-op (mean ± SD)	12 months (mean ± SD)	Mean difference ± SD	Range	p value
Spherical aberration (μm)	0.0856 ± 0.11	0.0748 ± 0.27	−0.0034 ± 0.199089	From 0.203 to −0.319	0.971368
Coma (μm)	0.264 ± 0.15	0.208 ± 0.12	0.0556 ± 0.202758	From 0.385 to −0.127	0.572913
Total RMS (μm)	3.528 ± 1.77	1.724 ± 0.86	1.8438 ± 1.210581	From 3.342 to 0.086	<0.05

SfAb, spherical aberration; Coma, coma aberration; RMS, root mean square; SD, standard deviation.