Fig. 3

Primary SMILE standardized graphs. a Postoperative cumulative uncorrected distance Snellen visual acuity (UDVA) versus preoperative cumulative corrected distance Snellen VISUAL acuity (CDVA). b Efficacy of the surgery by comparing postoperative UDVA to preoperative CDVA. c Safety of the procedure by comparing pre- and postoperative CDVA. d Accuracy of the surgery by comparing attempted versus achieved refractive spherical equivalent (SEQ) and presenting the regression formula describing the relation between them. e Accuracy of the surgery by showing the deviation of achieved SEQ compared to attempted SEQ in steps. g The residual refractive astigmatism. h Accuracy of the surgery by comparing attempted versus achieved refractive cylinder and presenting the regression formula describing the relation between them