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The safety indices (postoperative CDVA/preoperative CDVA) and efficacy indices (postoperative UDVA/preoperative CDVA) of both groups at postoperative months 1, 3, and 6.
| Month 1 | Month 3 | Month 6 | |
|---|---|---|---|
| Safety index | |||
| SMILE Xtra | 0.95 ± 0.08 | 0.95 ± 0.06 | 0.96 ± 0.06 |
| SMILE | 1.03 ± 0.09 | 1.00 ± 0.04 | 1.00 ± 0.00 |
| p value∗ | 0.004 | 0.005 | <0.001 |
| Efficacy index | |||
| SMILE Xtra | 0.89 ± 0.11 | 0.89 ± 0.10 | 0.88 ± 0.13 |
| SMILE | 0.96 ± 0.08 | 0.98 ± 0.07 | 0.97 ± 0.06 |
| p value∗ | 0.013 | 0.001 | 0.005 |
∗Linear mixed model analysis.
