Self estimated degree of visual functional problems while driving before surgery in relation to mean visual acuity (MVA) (SD) before and after surgery in operated, fellow, and better eye, respectively
| No problems | Some problems | Large problems | Not driving | |
| Before surgery: | ||||
| MVA eye to be operated | 1.36 (0.61) | 0.99 (0.61) | 1.05 (0.61) | 1.34 (0.61) |
| MVA fellow eye | 0.15 (0.19)* | 0.23 (0.26)** | 0.21 (0.22) | 0.44 (0.47) |
| After surgery: | ||||
| MVA operated eye | 0.06 (0.06) | 0.14 (0.17) | 0.23 (0.33) | 0.20 (0.27) |
| MVA better eye | 0.05 (0.05) | 0.08 (0.19) | 0.17 (0.31) | 0.16 (0.25) |
↵Significant improvement of MVA after surgery in the operated eye at a level of p<0.0001. **Significantly less improvement in MVA of the fellow eye before surgery for non-drivers compared with the various groups of drivers at a level of p<0.001 and *p<0.01.