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Table 1 Preoperative parameters between the two groups

From: Comparison of visual outcomes after femtosecond laser-assisted LASIK versus flap-off epipolis LASIK for myopia

Parameter

Mean ± Standard Deviation

P-value

femto-LASIK

flap-off epi-LASIK

SE (D)

−5.94 ± 2.23

−5.94 ± 1.92

0.783

K1 (D)

42.35 ± 2.06

42.50 ± 2.13

0.829

K2 (D)

43.53 ± 1.31

43.79 ± 2.20

0.989

AD (μm)

100.15 ± 34.13

90.31 ± 27.57

0.813

ACD (mm)

3.12 ± 0.26

3.25 ± 0.30

0.331

RBT (μm)

365.00 ± 43.28

331.95 ± 40.03

0.777

CCT (μm)

597.15 ± 27.69

552.15 ± 28.76

0.597

  1. femto-LASIK femtosecond laser-assisted in situ keratomileusis; epi-LASIK epipolis laser-assisted in situ keratomileusis; SE spherical equivalent; D diopters; K1 flat keratometry; K2 steep keratometry; AD ablation depth; ACD anterior chamber depth; RBT preoperative predict residual bed thickness; CCT central corneal thickness