Table 2.
Keratometry (D) and pachymetry (µm) over time.
| Mean ± SD | ||||||
|---|---|---|---|---|---|---|
| Variable | Preoperative | Postoperative | P Value | |||
| 1 Months | 6 Months | 1 Year | 2 Years | |||
| K 1 | 48.80 ± 4.68 | 45.72 ± 5.37 | 45.17 ± 4.72 | 45.62 ± 4.55 | 46.16 ± 5.78 | <0.001 |
| K 2 | 53.30 ± 4.95 | 48.82 ± 5.35 | 48.44 ± 4.74 | 48.59 ± 4.75 | 48.51 ± 5.98 | <0.001 |
| K m | 51.05 ± 4.52 | 47.27 ± 5.28 | 46.72 ± 4.63 | 47.05 ± 4.57 | 47.3 ± 5.85 | <0.001 |
| Pachymetry (thinnest location) | 429.18 ± 29.47 | 432.09 ± 40.49 | 425.80 ± 41.50 | 423.29 ± 41.23 | 432.73 ± 33.60 | =0.210 |
D = diopters; µm = micrometres; K 1 = corneal dioptric power in the flattest meridian for the 3-mm central zone, K 2 = corneal dioptric power in the steepest meridian for the 3-mm central zone, K m = mean corneal power in the 3-mm central zone.
P value—change from preoperatively to 1 year postoperatively (paired Student t test).