Table 2.

Preoperative data for primary procedure

Parameter	SMILE	LASIK	p
Mean sphere (D)	−4.17±2.5	−3.17±2.12	0.04
Mean cylinder (D)	−1.38±1.29	−1.18±1.21	0.26
Mean refractive spherical equivalent treated (Diopter)	−4.73±2.49	−3.76±1.86	0.03
Mean pachymetry (microns)	531.21±25.33	544.52±37.6	0.05
Mean keratometry maximum (D)	45.95±1.33	46.39±5.28	0.32