Table 4.
Mean Absolute refractive error (MARE) targets (0.50, 0.75, 1.0 D), applied to the formulas with bigger samples of eyes.
| Formula (total eyes where it was applied) | MARE ≤0.5D n (%) | MARE ≤0.75D n (%) | MARE ≤1.0D n (%) |
|---|---|---|---|
| Haigis L (50 eyes) | 26 (52%) | 33 (66%) | 40 (80%) |
| Barrett TK (no History) (50 eyes) | 16 (32%) | 22 (44%) | 36 (72%) |
| Barrett TK (33 eyes) | 12 (36%) | 20 (60%) | 23 (70%) |
| Shammas (33 eyes) | 13 (39%) | 19 (58%) | 21 (64%) |
| Jarade index | |||
| SRK/T (33 eyes) | 15 (45%) | 22 (57%) | 25 (76%) |
| Hoffer Q (33 eyes) | 18 (55%) | 24 (73%) | 26 (79%) |
| Holladay 1 (33 eyes) | 18 (55%) | 23 (70%) | 26 (79%) |
| Jarade formula | |||
| SRK/T (50 eyes) | 14 (28%) | 18 (36%) | 23 (46%) |
| Hoffer Q (50 eyes) | 24 (48%) | 29 (58%) | 33 (66%) |
| Holladay 1 (50 eyes) | 16 (32%) | 22 (44%) | 28 (56%) |
The n (%) of eyes among the sample that gives an error less than a set target are shown.