Corneal Clarity and Visual Outcomes after Small-Incision Lenticule Extraction and Comparison to Femtosecond Laser-Assisted In Situ Keratomileusis

Table 5

Comparison of preoperative and 3-month postoperative total corneal densitometry (all corneal layers) for the different annuli and CDVA: SMILE versus FS-LASIK.

	Preoperatively	3 months; postoperatively
0–2 mm annulus (all corneal layers)
SMILE	17.8 ± 1.1 (13.9 to 20.0)	17.8 ± 1.1 (15.0 to 19.8)
FS-LASIK	18.4 ± 1.0 (16.6 to 20.4)	18.0 ± 1.0 (15.9 to 20.2)
value	0.11	0.569
2–6 mm annulus (all corneal layers)
SMILE	16.2 ± 1.2 (11.6 to 19.0)	16.4 ± 1.2 (12.2 to 18.4)
FS-LASIK	16.9 ± 1.1 (15.3 to 19.7)	16.8 ± 1.2 (14.6 to 19.4)
value	0.05	0.055
0–6 mm annulus (all corneal layers)
SMILE	17.0 ± 1.2 (12.8 to 19.5)	17.1 ± 1.1 (13.6 to 19.0)
FS-LASIK	17.7 ± 1.1 (16.0 to 20.1)	17.4 ± 1.1 (15.4 to 19.8)
value	0.007	0.686
CDVA
SMILE	1.04 ± 0.20 (0.63 to 1.60)	1.04 ± 0.16 (0.63 to 1.40)
FS-LASIK	1.03 ± 0.13 (0.80 to 1.40)	1.05 ± 0.13 (0.80 to 1.40)
value	0.805	0.517