Table 4.
Postoperative Aberrations, Visual Quality and Angle Alppha and Kappa results in the two study groups for 4 mm pupil. Data are presented as mean ± SD.
| Satisfied patients (N = 32) | Unsatisfied patients (N = 28) | P | Bonferroni adjusted P | |
|---|---|---|---|---|
| RMS (μm) | 0.64 ± 0.68 | 0.6 ± 0.29 | 0.77 | 1.0 |
| Strehl | 0.08 ± 0.08 | 0.05 ± 0.04 | 0.03∗ | 0.24 |
| MTF | 0.24 ± 0.07 | 0.25 ± 0.1 | 0.31 | 1.0 |
| Higher order terms | ||||
| HORMS (μm) | 0.32 ± 0.37 | 0.22 ± 0.13 | 0.09 | 0.72 |
| HO Strehl | 0.19 ± 0.15 | 0.11 ± 0.14 | 0.14 | 1.0 |
| HO MTF | 0.39 ± 0.11 | 0.4 ± 0.11 | 0.66 | 1.0 |
| Angle Alpha distance (mm) | 0.38 ± 0.16 | 0.39 ± 0.16 | 0.59 | 1.0 |
| Angle Kappa distance (mm) | 1.35 ± 1.34 | 1.55 ± 1.46 | 0.47 | 1.0 |
RMS = root mean square; HORMS = higher order root mean square; MTF = modulation transfer function; SA = spherical aberration; ∗statistically significant difference between preoperative and postoperative values at a = 0.05 level; P: difference between the two groups using the Mann- Whitney U test.