Table 2.
| Hoffer Q (Aladdin) | Hoffer Q (SimK+US) | Holladay 1 (Aladdin) | Holladay 1 (SimK+US) | SRK/T (Aladdin) | SRK/T (SimK+US) | |
|---|---|---|---|---|---|---|
| Mean optimized constant | 5.69 | 5.45 | 1.91 | 1.68 | 119.11 | 118.77 |
| Mean PE | 0.02 ±0.33 D | 0.01 ±0.37 D | 0.02 ±0.34 D | 0.01 ±0.36 D | 0.00 ±0.36 D | -0.01 ±0.39 D |
| MedAE | 0.25 D | 0.16 D | 0.25 D | 0.19 D | 0.25 D | 0.19 D |
| MAE (±SD) | 0.27 ±0.19 D | 0.26 ±0.25 D | 0.28 ±0.19 D | 0.27 ±0.24 D | 0.28 ±0.23 D | 0.28 ±0.27 D |
| PE Variance | 0.04 D | 0.07 D | 0.04 D | 0.06 D | 0.05 D | 0.07 D |
| Eyes with PE within ±0.25 D | 50.68% | 71.23% | 56.16% | 65.75% | 53.42% | 61.64% |
| Eyes with PE within ±0.50 D | 89.04% | 86.30% | 87.67% | 87.67% | 87.67% | 86.30% |
| Eyes with PE within ±1.00 D | 100.00% | 97.26% | 100.00% | 98.63% | 98.63% | 95.89% |
Refractive outcome predictability of IOL power calculation using the Aladdin optical biometer. D = diopters; MedAE = median absolute error; MAE = mean absolute error; SD = standard deviation; PE = prediction error.