IOLMaster refractive results: comparison of various IOL power calculation formulas (Wilcoxon signed rank test)
| Prediction error | Eyes within* | ||||||
|---|---|---|---|---|---|---|---|
| Mean (SD) | Range | Absolute prediction error | 0.50 D | 1.00 D | 1.50 D | 2.00 D | |
| *Percentage of eyes within 0.50 D, 1.00 D, 1.50 D, and 2.00 D from intended refraction. | |||||||
| †Holladay v SRK T, p=0.002. | |||||||
| ‡Holladay v SRK II, p<0.0001. | |||||||
| §Holladay v Hoffer Q, p<0.007. | |||||||
| Holladay | −0.15 (0.38) | −1.28 to +1.26 | 0.29 (0.27) | 84% | 96% | 100% | |
| SRK T | −0.22 (0.40) | −1.46 to +1.57 | 0.35 (0.31)† | 81% | 95% | 99% | 100% |
| SRK II | −0.37 (0.50) | −1.75 to +1.40 | 0.49 (0.39)‡ | 67% | 90% | 98% | 100% |
| Hoffer Q | −0.16 (0.41) | −1.43 to +1.45 | 0.33 (0.30)§ | 84% | 96% | 100% | |