Table 2.
Preoperative patient characteristics
| na | Mean ± SD | Range | |
|---|---|---|---|
| Patient characteristics | |||
| Age (years) | 282 | 73 ± 7.7 | 49; 91 |
| Gender (%, men/women) | 282 | 46.5 / 53.5 | |
| Axial length (mm) | 280 | 23.82 ± 1.43 | 21.47; 33.83 |
| Anterior chamber depth (mm) | 277 | 3.16 ± 0.42 | 1.91; 4.82 |
| IOL power (D) | 282 | 19.89 ± 3.24 | 1.0; 27.5 |
| Formula | 279 |
Haigis: 52.7% SRK/T: 47.0% Holladay: 0.4% |
|
| Expected postoperative spherical equivalent (D) | 278 | −0.43 ± 0.97 | −6.27; 2.84 |
| Refraction | |||
| Sphere (D) | 149 | −0.65 ± 3.14 | −16.0; 6.5 |
| Cylinder (D) | 148 | −0.87 ± 0.72 | −3.5; 0 |
| Spherical equivalent (D) | 148 | −1.07 ± 3.15 | −16.0; 6.0 |
| Visual acuity | |||
| UDVA | 53 | 0.84 ± 0.45 | 0.2; 2.3 |
| CDVA | 280 | 0.48 ± 0.28 | 0.1; 2.3 |
a Due to the retrospective nature of the trial, not all individual preoperative values were available. In particular, subjective refraction and UDVA were not routinely measured preoperatively in all sites