Figure 2From: Retrospective analysis of changes in the anterior corneal surface after Q value guided LASIK and LASEK in high myopic astigmatism for 3 years The mean Q value for the two groups. The mean Q value increased from -0.35 ± 0.15 to 0.79 ± 0.33 in LASIK and from -0.35 ± 0.15 to 0.79 ± 0.30 in LASEK group.Back to article page