Preoperative score (mean ± SD) | Postoperative score (mean ± SD) | P value | |
---|---|---|---|
Total score | 60.41 ± 24.81 | 90.16 ± 10.91 | < 0.001 |
Far distance | 61.55 ± 22.98 | 89.70 ± 13.03 | < 0.001 |
Intermediate distance | 68.89 ± 26.63 | 97.50 ± 7.01 | 0.001 |
Near distance | 58.00 ± 30.17 | 86.00 ± 14.78 | 0.004 |