No of patients | Distance estimation problems | p Values | |||||
Before surgery | After surgery | ||||||
No problems | 21 | 0% (0/21) | 0% (0/21) | ||||
Some problems | 78 | 44% (34/78) | 4% (3/78) | <0.0001 | |||
Large problems | 9 | 100% (9/9) | 33% (3/9) | <0.001 | |||
Not stated degree of problem | 11 | 9% (1/11) | 9% (1/11) | ||||
Non-drivers before surgery | 92 | 58% (53/92) | 24% (22/92) | <0.0001 | |||
All | 211 | 46% (97/211) | 14% (29/211) | <0.0001 |