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Table 2 Comparison of the accuracy of intraocular power calculation between the non-pretreatment and pretreatment group for DED before cataract surgery

From: Improved accuracy of intraocular lens power calculation by preoperative management of dry eye disease

 

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%)

 
  1. Values are presented as mean ± standard deviation
  2. D Diopter, DED Dry eye disease, ME Mean error, MAE Mean absolute error
  3. Refractive surprise: MAE ≥ 0.75D; †Chi-squared test; *: statistically significant