Fig. 2
From: Central corneal regularization (CCR): an alternative approach in keratoconus treatment
Pre and postoperative comparisons of the groups. (a) Mean sphere equivalent (SE); (b) Cylinder error; (c) Minimum mean pachymetry; (d) Kmax; (e) Mean corrected distance visual acuity (CDVA); (f) Mean uncorrected distance visual acuity (UDVA)