Table 1.
PRE QX DATA (MEAN ± SD) |
POP QX DATA (MEAN ± SD) |
P | |
---|---|---|---|
Sphere (D) | −2.79 ± 3.04 | −3.02 ± 3.08 | 0.64 |
Cylinder* (D) | −3.22 ± 2.07 | −3.15 ± 1.84 | 0.82 |
Spherical equivalent (D) | −4.41 ± 3.43 | −4.6 ± 3.31 | 0.72 |
Flatter keratometry (D) | 46.2 ± 4.1 | 45.7 ± 4.4 | 0.46 |
Steeper keratometry (D) | 50.5 ± 5.8 | 50.5 ± 6.14 | 1.0 |
Mean keratometry (D) | 48.4 ± 4.8 | 48.3 ± 5.1 | 0.9 |
Distance corrected visual acuity (LogMAR) | 0.29 ± 0.25 | 0.25 ± 0.24 | 0.3 |
Pachymetry (microns) | 470 ± 52.2 | 471 ± 60.5 | 0.91 |
Endothelial count (cells/mm2) | 2715 ± 317 | 2552 ± 263 | 0.005 |
Corneal hysteresis | 8.76 ± 1.46 | 8.40 ± 1.85 | 0.17 |
Corneal resistance factor | 7.58 ± 1.54 | 7.52 ± 2.11 | 0.39 |
Note:
Negative cylinder notation.