Fig. 3

Refractive and visual outcomes in the topography-modified refraction group three months postoperative. (a) Cumulative distribution of uncorrected distance Snellen visual acuity (UDVA) compared with preoperative best-corrected distance visual acuity (BCVA). Fifty-two (61.2%) and 68 (80.0%) eyes had a UDVA better than 20/16 and 20/20, respectively, at three months after surgery. (b) Scatter plots of attempted versus achieved manifest refraction spherical equivalent (MRSE). (c) Accuracy of MRSE. Seventy-one eyes (83.5%) had MRSE within ±0.75 D of emmetropia at three months after surgery. (d) Cumulative distribution of refractive astigmatism (RA) compared with the preoperative value. Thirty-four (40.0%) and 61 (71.8%) eyes had an RA less than 0.25 D and 0.50 D, respectively, at three months after surgery