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Table 2 Comparison between postoperative keratometric and aberrometric changes in group I and II

From: Visumax femtolasik versus Moria M2 microkeratome in mild to moderate myopia: efficacy, safety, predictability, aberrometric changes and flap thickness predictability

  GROUP I GROUP II P value
Postoperative K1(D) 41.6 ± 1.09 (38.9 to 43.5) 41.0 ± 1.6 (38.5 to 43.6) 0.14
Postoperative K2(D) 40.7 ± 1.08 (38.8 to 42.9) 40.26 ± 1.5 (37.8 to 43.2) 0.13
Postoperative Q(4.5 mm) 0.1± 0.2 (−0.5 to 0.4) 0.2 ± 0.1 (−0.1 to 0.5) 0.07
Postoperative total aberrations(μm) 1.19 ± 0.6 1.21 ± 0.4 0.4
Postoperative HOA(μm) 0.44 ± 0.1 0.4 ± 0.1 0.46
Postoperative vertical coma(μm) 0.08 ± 0.5 0.07 ± 0.6 0.68
Postoperative horizontal coma(μm) 0.4 ± 0.6 0.3 ± 0.7 0.27
Postoperative SA(μm) 0.3 ± 0.3 0.4 ± 0.3 0.08
  1. Abbreviations: (k1,k2) the steep and the flat keratometric readings, D diopter, Q corneal asphericity, HOA high order aberrations, μm micron, SA spherical aberrations