| Preoperative BCVA, average (decimal) ± SD | Postoperative BCVA, average (decimal) ± SD | P value |
Group 1 | 0.14 ± 0.11 | 0.74 ± 0.20 | <0.001a |
Group 2 | 0.12 ± 0.13 | 0.54 ± 0.20 | |
Group 3 | 0.13 ± 0.13 | 0.39 ± 0.18 |