Table 1. Demographic Data and Preoperative Characteristics.

Characteristics	SMILE group (n = 32 eyes)	FS-LASIK group (n = 42 eyes)	P value
Age (mean ± SD, y)	27.1±4.0	28.3±5.5	0.2878
Range of age (y)	20–36	22–39
Male/Female	9/9	6/16	0.140
Preoperative SE (mean ± SD, D)	−6.56±1.28	−8.46±2.15	<0.001
Range of preoperative SE (D)	−8.25–−4.00	−13.00–−3.30
Treated SE (mean ± SD, D)	−7.11±1.33	−9.3±2.2	<0.001
Range of treated SE (D)	−9.13–−4.40	−14.0–−3.50
CCT (µm)	547.34±35.09	545.61±25.67	0.8081
Range of CCT	500–614	500–605
Ablation depth (mean ± SD, µm)	132.00±22.42	141.83±21.28	0.0598
Range of ablation depth (µm)	92–170	72–168
CDVA (logMAR)	−0.017±0.040	0.001±0.075	0.2166

SE: spherical equivalent.

CCT: central corneal thickness.

CDVA: corrected distance visual acuity.