Table 2 Refractive mean error, mean absolute error, and median absolute error, according to each formula, using conventional keratometry or total keratometry.

From: Comparing prediction accuracy between total keratometry and conventional keratometry in cataract surgery with refractive multifocal intraocular lens implantation

 

ME

SD

MAE

MedAE

Haigis (K)

0.196

0.335

0.317

0.270

Haigis (TK)

0.167

0.345

0.312

0.270

SRK/T (K)

− 0.046

0.343

0.275

0.230

SRK/T (TK)

− 0.073

0.353

0.284

0.240

Holladay 2 (K)

− 0.039

0.337

0.268

0.210

Holladay 2 (TK)

− 0.077

0.347

0.278

0.230

Barrett (K)

− 0.054

0.315

0.251

0.210

Barrett (TK)

− 0.107

0.318

0.264

0.210

  1. ME mean error, SD standard deviation, MAE mean absolute error, MedAE median absolute error, K conventional keratometry, TK total keratometry.
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