Table 2.
Comparison of the accuracy of intraocular power calculation between the non-pretreatment and pretreatment group for DED before cataract surgery
| Pretreatment (−) | Pretreatment (+) | P value | |
|---|---|---|---|
| SRK/T | |||
| ME (D) | 0.10 ± 0.53 | 0.09 ± 0.28 | 0.828 |
| MAE (D) | 0.42 ± 0.33 | 0.23 ± 0.19 | < 0.001* |
| Refractive surprise (+) | 9 (17.3%) | 2 (3.8%) | 0.024†* |
| Refractive surprise (−) | 43 (82.7%) | 51 (96.2%) | |
| Barrett Universal II | |||
| ME (D) | −0.06 ± 0.51 | −0.01 ± 0.30 | 0.529 |
| MAE (D) | 0.38 ± 0.34 | 0.24 ± 0.19 | 0.008* |
| Refractive surprise (+) | 8 (15.4%) | 1 (1.9%) | 0.016†* |
| Refractive surprise (−) | 44 (84.6%) | 52 (98.1%) | |
Values are presented as mean ± standard deviation
D Diopter, DED Dry eye disease, ME Mean error, MAE Mean absolute error
Refractive surprise: MAE ≥ 0.75D; †Chi-squared test; *: statistically significant