Table 1.

Preoperative and postoperative data for: UCVA (uncorrected visual acuity) and BCVA (best corrected visual acuity) in logMAR; refractive outcomes in diopters (D) for mean sphere, mean cylinder and mean spherical equivalent (SE); topographic data in D for steepest keratometry (Ks), flattest keratometry (Kf), mean keratometry (Km) and corneal astigmatism (CA).

	Baseline	3 months	p value (versus baseline)	6 months	p value (versus baseline)	12 months	p value (versus baseline)	24 months	p value (versus baseline)
UCVA	0.9 ± 0.19	0.75 ± 0.29	0.008	0.68 ± 0.26	0.0001	0.68 ± 0.27	0.0002	0.68 ± 0.27	0.0002
BCVA	0.15 ± 0.11	0.11 ± 0.12	0.0004	0.09 ± 0.09	<0.0001	0.09 ± 0.09	<0.0001	0.08 ± 0.09	<0.0001
Sphere	3.65 ± 2.01	3.03 ± 1.93	<0.0001	2.93 ± 1.93	<0.0001	2.83 ± 1.89	<0.0001	2.83 ± 1.89	<0.0001
Cylinder	3.63 ± 1.67	2.1 ± 1.54	<0.0001	1.97 ± 1.52	<0.0001	1.93 ± 1.49	<0.0001	2.04 ± 1.46	<0.0001
SE	5.49 ± 2.26	4.07 ± 2.21	<0.0001	3.9 ± 2.17	<0.0001	3.8 ± 2.11	<0.0001	3.8 ± 2.13	<0.0001
Ks	48.79 ± 3.22	46.47 ± 3.17	<0.0001	46.25 ± 3.16	<0.0001	46.22 ± 3.16	<0.0001	46.16 ± 3.11	<0.0001
Kf	45.18 ± 2.17	44.46 ± 2.21	<0.0001	44.40 ± 2.21	<0.0001	44.37 ± 2.19	<0.0001	44.35 ± 2.19	<0.0001
Km	46.98 ± 2.62	45.42 ± 2.65	<0.0001	45.32 ± 2.61	<0.0001	45.3 ± 2.6	<0.0001	45.26 ± 2.57	<0.0001
CA	3.62 ± 1.71	2.1 ± 1.52	<0.0001	1.98 ± 1.51	<0.0001	1.94 ± 1.49	<0.0001	1.90 ± 1.47	<0.0001