Fig. 1

Box-whisker plots showing time-course changes in median values of a BCVA, b RA, c CPS, and d MRS during post-surgery follow-up period. Wilcoxon signed-ranks test show significant improvements in BCVA, RA, and CPS in all post-surgery follow-up examinations compared to the values at baseline (P < 0.001). However, the median MRS shows significant improvement only at 12 months post-surgery (P < 0.05). The vertical-column boxes indicate values between the 25th and 75th percentiles (central line, median). The circles denote outliers. BCVA: best-corrected visual acuity; RA: reading acuity; CPS: critical print size; MRS: maximum reading speed