Table 3.
Percentages of eyes with different absolute errors at different refractive thresholds.
| Formula | Percentages of eyes with indicated absolute error (P value†) | |||
|---|---|---|---|---|
| <0.5 D | <1.0 D | <2.0 D | <3.0 D | |
| Haigis | 23.65% | 49.32% | 77.03% | 91.89% |
| Hoffer Q | 16.89% (0.148) | 33.78% (0.007) | 63.51% (0.011) | 81.76% (0.010) |
| Holladay 1 | 18.24% (0.253) | 32.43% (0.003) | 68.24% (0.090) | 87.16% (0.184) |
| SRK/T | 19.60% (0.397) | 47.97% (0.816) | 76.35% (0.891) | 89.86% (0.545) |
†Compared with results achieved using the Haigis formula (Chi-square test). D, diopters.