Table 1.
Autorefraction, keratometry and axial length measured pre- and post-cycloplegia. Spherical equivalent (SE), refractive astigmatism vectorial components (J0_Ar and J45_Ar), mean keratometry (Km), corneal astigmatism vectorial components (J0_K and J45_K), and axial length (AL). Data is presented with mean ± standard deviation (SD), 95% confidence interval (CI) and range
| Measurement 1 | Measurement 2 | |||||
|---|---|---|---|---|---|---|
| Parameter | Mean ± SD | 95% CI | Range | Mean ± SD | 95% CI | Range |
| Pre-cycloplegia | ||||||
| SE (D) | -0.80 ± 2.04 | -1.21; -0.39 | -6.20; +6.51 | -0.81 ± 1.99 | -1.21; -0.40 | -6.35; +5.18 |
| J0_Ar (D) | + 0.20 ± 0.36 | + 0.12; +0.27 | -0.78; +1.15 | + 0.21 ± 0.37 | + 0.14; +0.29 | -0.78; +1.23 |
| J45_Ar (D) | -0.08 ± 0.20 | -0.12; -0.04 | -0.75; +0.60 | -0.09 ± 0.19 | -0.13; -0.05 | -0.47; +0.53 |
| Km (D) | 43.40 ± 1.54 | 43.09; 43.71 | 39.85; 47.45 | 43.39 ± 1.53 | 43.08; 43.70 | 39.90; 47.45 |
| J0_K (D) | + 0.34 ± 0.24 | + 0.29; +0.39 | -0.31; +0.94 | + 0.33 ± 0.23 | + 0.28; +0.38 | -0.28; +0.94 |
| J45_K (D) | + 0.01 ± 0.13 | -0.02; +0.04 | -0.35; +0.35 | + 0.01 ± 0.13 | -0.02; +0.04 | -0.35; +0.35 |
| AL (mm) | 23.41 ± 1.23 | 23.16; 23.66 | 20.42; 26.68 | 23.41 ± 1.22 | 23.17; 23.66 | 20.43; 26.67 |
| Post-cycloplegia | ||||||
| SE (D) | -0.02 ± 2.39 | -0.50; +0.47 | -5.61; +7.18 | -0.01 ± 2.39 | -0.49; +0.47 | -5.68; +7.32 |
| J0_Ar (D) | + 0.25 ± 0.33 | + 0.18; +0.32 | -0.60; +1.19 | + 0.24 ± 0.35 | + 0.20; +0.34 | -0.66; +1.19 |
| J45_Ar (D) | -0.07 ± 0.20 | -0.11; -0.03 | -0.76; +0.60 | -0.08 ± 0.19 | -0.12; -0.04 | -0.50; +0.60 |
| Km (D) | 43.38 ± 1.57 | 43.07; 43.70 | 39.85; 47.55 | 43.37 ± 1.55 | 43.06; 43.68 | 39.60; 47.35 |
| J0_K (D) | + 0.34 ± 0.24 | + 0.29; +0.39 | -0.29; +0.91 | + 0.35 ± 0.24 | + 0.30; +0.39 | -0.28; +0.89 |
| J45_K (D) | + 0.02 ± 0.13 | -0.01; +0.05 | -0.24; +0.45 | + 0.02 ± 0.13 | -0.01; +0.05 | -0.24; +0.45 |
| AL (mm) | 23.42 ± 1.20 | 23.18; 23.67 | 20.42; 26.68 | 23.42 ± 1.20 | 23.17; 23.67 | 20.43; 26.67 |