Table 2.
Cohort demographics and preoperative clinical parameters
| Parameter | Mean ± SD (range) or % (95% CI)
|
P-valuea | |
|---|---|---|---|
| 130° inverted side cut made by a 150 kHz femtosecond laser | 70° conventional side-cut made by a 60 kHz femtosecond laser | ||
| Demographics | |||
| Age, years | 34.3±9.0 (21 to 75) | ||
| Female | 63.9% (51.0 to 76.8) | ||
| Right eye | 59.0% (45.8 to 72.2) | 41.0% (27.8 to 54.2) | 0.05b |
| Dominant eye | 50.8% (37.4 to 64.2) | 49.2% (35.8 to 62.6) | 0.86b |
| Preoperative clinical parameters | |||
| CDVA (logMAR) | −0.14±0.07 (−0.30 to 0.00) | −0.14±0.07 (−0.20 to 0.00) | 0.82 |
| Manifest sphere | −4.62±2.32 (−9.75 to −1.00) | −4.66±2.30 (−10.00 to −0.75) | 0.73 |
| Manifest cylinder | +0.65±0.49 (0.00 to 1.75) | +0.69±0.70 (0.00 to 3.00) | 0.57 |
| Manifest SE | −4.30±2.31 (−9.75 to −0.88) | −4.32±2.31 (−10.00 to −0.75) | 0.85 |
| Coma | 0.19±0.10 (0.05 to 0.45) | 0.18±0.09 (0.03 to 0.44) | 0.33 |
| Trefoil | 0.16±0.09 (0.02 to 0.45) | 0.17±0.08 (0.01 to 0.35) | 0.55 |
| Spherical aberration | 0.09±0.12 (−0.19 to 0.40) | 0.09±0.12 (−0.26 to 0.35) | 0.79 |
| RMS error | 0.34±0.11 (0.17 to 0.58) | 0.34±0.09 (0.11 to 0.58) | 0.61 |
Notes:
a
P-values are calculated using the paired t-test unless otherwise specified.
b
P-values are calculated using the Pearson’s chi-square test.
Abbreviations: CDVA, corrected distance visual acuity; CI, confidence interval; logMAR, logarithm of the minimum angle of resolution; RMS, root mean square; SD, standard deviation; SE, spherical equivalent.