Table 2.
Table comparing posterior Ks(D) and Kf (D), Ks axis(°), Kf axis(°), posterior astigmatism As.(D) measured with OCT Casia 2 and GalileiG6 Dual Scheimpflug Analyzer. ICC (introclass correlation coefficient) refers to the correlation between devices.
| GalileiG6 | ss-OCT Casia 2 | Difference: GalileiG6-ss-OCT Casia 2 | p * | Limits of Agreement | ICC (95% CI) | ||
|---|---|---|---|---|---|---|---|
| Lower (95% CI) | Upper (95% CI) | ||||||
| Ks (D) (Mean ± SD) | −6.56 ± 0.51 | −6.33 ± 0.3 | −0.23 ± 0.42 | p < 0.001 | −1.04 (−1.05; −1.04) | 0.59 (0.58; 0.59) | 0.43 (0.23; 0.59) |
| Kf (D) (Mean ± SD) | −6.13 ± 0.36 | −6.07 ± 0.26 | −0.06 ± 0.26 | p < 0.001 | −0.57 (−0.57; −0.57) | 0.44 (0.44; 0.44) | 0.65 (0.55; 0.74) |
| Ks axis (°) (Mean ± SD) | 79.29 ± 32.08 | 87.04 ± 17.6 | −7.75 ± 31.31 | p = 0.021 | −69.11 (−102.79; −35.43) | 53.61 (19.93; 87.29) | 0.26 (0.1; 0.4) |
| Kf axis (°) (Mean ± SD) | 104.43 ± 67.06 | 96.1 ± 80.3 | 8.33 ± 77.45 | p = 0.619 | −143.48 (−349.66; 62.7) | 160.14 (−46.04; 366.32) | 0.45 (0.31; 0.57) |
| Ast. (D) (Mean ± SD) | 0.45 ± 0.36 | 0.27 ± 0.13 | 0.49 ± 0.36 | p < 0.001 | −0.92 (−0.79; −1.05) | 0.56 (0.69; 0.44) | 0 (−0.13; 0.14) |
* Paired Wilcoxon test.