Table 2.
Topographic and pachymetric outcomes after accelerated cross-linking in pediatric keratoconus.
| Preoperative | Postoperative | Mean change | P value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | Std. dev | Median | [95% CI] | Mean | Std. dev | Median | [95% CI] | Mean | Std. dev | ||||
| K1 (D) | 44.92 | 2.20 | 44.46 | 43.43 | 45.49 | 44.74 | 2.46 | 44.29 | 43.15 | 45.43 | 0.19 | 0.77 | 0.1598 |
| K2 (D) | 48.71 | 2.05 | 48.84 | 47.90 | 49.78 | 48.77 | 2.78 | 49.1 | 47.82 | 50.38 | −0.05 | 1.41 | 0.8542 |
| K mean (D) | 46.80 | 2.04 | 46.14 | 45.16 | 47.12 | 46.66 | 2.33 | 46.57 | 45.51 | 47.63 | 0.14 | 1.12 | 0.642 |
| K apex (D) | 56.97 | 5.24 | 55.62 | 53.15 | 58.09 | 55.84 | 5.37 | 53.2 | 50.44 | 55.96 | 1.13 | 2.00 | 0.0036 |
| Sim cyl (D) | −3.72 | 1.77 | −3.55 | −4.36 | −2.74 | −4.04 | 2.30 | −3.52 | −4.59 | −2.45 | 0.32 | 1.03 | 0.1385 |
| ThkMin (μm) | 438 | 49 | 433 | 411 | 456 | 431 | 47 | 428 | 407 | 450 | 7 | 22 | 0.0836 |
K: keratometry; K1: flat keratometry; K2: steep keratometry; K mean: mean keratometry; K apex: apex keratometry; Sim cyl: simulated cylinder; D: diopter; ThkMin: minimum corneal thickness; μm: micron; [95% CI]: 95% confidence interval. Statistically significant increased values (P < 0.05). The value in bold is statistically significant.