Table 5.
Intended, postoperative and difference between the intended and postoperative refractive error
| Formula | Intended refractive outcome | Postoperative refractive outcome | Difference between intended and postoperative refractive error | ||||
| SE | SCxA | SE | SCxA | SE | SCxA | ||
| Kane | Mean (SD) | −0.70 (+0.66) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.54) | −0.14+0.27×1 |
| 95% LCL | −1.99 | −1.47–1.02×140 | −2.10 | −2.54+0.87×39 | −1.05 | −1.52+0.93×43 | |
| 95% UCL | +0.60 | +0.11+0.97×137 | 0.71 | +0.29+0.84×143 | 1.05 | +0.54+1.03×149 | |
| Barrett | Mean (SD) | −0.70 (+0.68) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.56) | −0.14+0.27×1 |
| 95% LCL | −2.03 | −1.52–1.02×140 | −2.10 | −2.54+0.87×39 | −1.09 | −1.55+0.93×43 | |
| 95% UCL | +0.64 | +0.15+0.97×136 | 0.71 | +0.29+0.84×143 | 1.09 | +0.58+1.03×149 | |
| Hill | Mean (SD) | −0.69 (+0.67) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.55) | −0.14+0.27×1 |
| 95% LCL | −2.00 | −1.48–1.02×140 | −2.10 | −2.54+0.87×39 | −1.08 | −1.55+0.93×42 | |
| 95% UCL | +0.61 | +0.12+0.97×137 | 0.71 | +0.29+0.84×143 | 1.08 | +0.56+1.03×148 | |
| Olsen | Mean (SD) | −0.69 (+0.68) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.55) | −0.14+0.27×1 |
| 95% LCL | −2.02 | −1.51–1.02×140 | −2.10 | −2.54+0.87×39 | −1.08 | −1.55+0.93×43 | |
| 95% UCL | +0.64 | +0.15+0.97×137 | 0.71 | +0.29+0.84×143 | 1.07 | +0.55+1.03×149 | |
| Holladay 2 | Mean (SD) | −0.70 (+0.67) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.56) | −0.14+0.27×1 |
| 95% LCL | −2.00 | −1.49–1.02×140 | −2.10 | −2.54+0.87×39 | −1.10 | −1.57+0.93×43 | |
| 95% UCL | +0.61 | +0.12+0.97×137 | 0.71 | +0.29+0.84×143 | 1.10 | +0.59+1.03×149 | |
| H1 | Mean (SD) | −0.70 (+0.69) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.56) | −0.14+0.27×1 |
| 95% LCL | −2.04 | −1.53–1.02×140 | −2.10 | −2.54+0.87×39 | −1.10 | −1.57+0.93×42 | |
| 95% UCL | +0.65 | +0.16+0.97×137 | 0.71 | +0.29+0.84×143 | 1.10 | +0.59+1.02×148 | |
| Haigis | Mean (SD) | −0.70 (+0.71) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.57) | −0.14+0.27×1 |
| 95% LCL | −2.09 | −1.58–1.03×140 | −2.10 | −2.54+0.87×39 | −1.11 | −1.57+0.93×43 | |
| 95% UCL | +0.70 | +0.21+0.97×137 | 0.71 | +0.29+0.84×143 | 1.11 | +0.59+1.02×149 | |
| SRK/T | Mean (SD) | −0.70 (+0.70) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.62) | −0.14+0.27×1 |
| 95% LCL | −2.06 | −1.54–1.05×143 | −2.10 | −2.54+0.87×39 | −1.22 | −1.69+0.93×43 | |
| 95% UCL | +0.67 | +0.17+0.99×139 | 0.71 | +0.29+0.84×143 | 1.22 | +0.70+1.04×149 | |
| Hoffer Q | Mean (SD) | −0.70 (+0.73) | −0.73+0.07×82 | −0.70 (+0.72) | −0.80+0.21×3 | 0.00 (+0.58) | −0.14+0.27×1 |
| 95% LCL | −2.13 | −1.62–1.03×140 | −2.10 | −2.54+0.87×39 | −1.14 | −1.61+0.93×42 | |
| 95% UCL | +0.74 | +0.25+0.97×137 | 0.71 | +0.29+0.84×143 | 1.14 | +0.63+1.02×148 | |
Spherical equivalent (SE), Compound refractive error (SCxA), SD, Lower confidence limit (LCL), Upper confidence limit.
LCL, lower confidence limit; SCxA, compound refractive error; SE, spherical equivalent; UCL, upper confidence limit.