Pachymetric and topographical changes in eyes with partial flap (group 1) and in eyes with uneventful LASIK surgery (group 2)
| Variables | Group 1 | Group 2 |
|---|---|---|
| RBT = residual bed thickness. | ||
| Flap thickness (μm) | 124.9 (14.7) | 122.4 (11.2) |
| RBT (μm) | 299.6 (39) | 306.2 (31.9) |
| Posterior corneal elevation (μm) | ||
| Preoperative | 16.4 (4.8) | 16.1 (4.8) |
| After partial flap | 16.9 (4.4) | – |
| After final surgery (flap + RBT) | 57.2 (15.6) | 54.3 (13.1) |
| Two way ANOVA/paired t test | F=112.6, p<0.001 | t=11.6, p<0.001 |
| Anterior corneal elevation (μm) | ||
| Preoperative | 13 (2.2) | 14.3 (1.5) |
| After partial flap | 13.6 (1.9) | – |
| After final surgery (flap + RBT) | −14.8 (4.1) | −14.2 (3.6) |
| Two way ANOVA/paired t test | F=456.7, p<0.001 | t=25.5, p<0.001 |
| Pachymetry (μm) | ||
| Preoperative | 522.6 (19.5) | 524.6 (17.2) |
| After partial flap | 523.5 (20) | – |
| After final surgery (flap + RBT) | 421.3 (42.2) | 425.4 (38.5) |
| Two way ANOVA/paired t test | F=167.2, p<0.001 | t=13.0, p<0.001 |