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Table 2 Comparison of refractive mean errora at 1 month after the surgery

From: Comparison of a new swept-source optical biometer with a partial coherence interferometry

Formula

PCI biometer

SS-OCT biometer

P value*

Tecnis ZCB00 (n = 102)

 SRK-T

− 0.128 ± 0.42

−0.136 ± 0.40

.59

 Hoffer Q

−0.036 ± 0.46

−0.028 ± 0.44

.65

 Holladayb

− 0.070 ± 0.44

−0.157 ± 0.34

.0003

 Haigis

−0.046 ± 0.46

−0.038 ± 0.41

.69

AcrySof SA60AT (n = 48)

 SRK-T

0.008 ± 0.53

− 0.019 ± 0.52

.31

 Hoffer Q

0.162 ± 0.51

0.126 ± 0.52

.28

 Holladayb

0.127 ± 0.51

0.069 ± 0.46

.14

 Haigis

0.128 ± 0.53

0.115 ± 0.47

.71

  1. PCI partial coherence interferometry, SS-OCT swept-source optical coherence tomography
  2. *Paired t-test
  3. aRefractive mean error = postoperative spherical equivalent (SE) – predicted SE
  4. bHolladay 1 and 2 formulas were embedded in PCI and SS-OCT biometers, respectively