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Table 1 Comparison of biometric measurements between two devices (n = 150)

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

Parameter

PCI biometer

SS-OCT biometer

 

Mean ± SD

Range

Mean ± SD

Range

Difference

P value*

AL (mm)

23.99 ± 1.61

21.23 30.47

23.98 ± 1.60

21.19 30.43

0.0098 ± 0.03

< .0001

Km (D)

44.20 ± 1.53

40.99 48.36

44.24 ± 1.55

40.99 48.10

−0.0365 ± 0.20

.03

J0 (D)

−0.007 ± 0.33

−0.995 0.772

− 0.005 ± 0.32

−0.794 0.811

− 0.0019 ± 0.44

.96

J45 (D)

0.008 ± 0.35

−1.117 0.908

−0.022 ± 0.33

−0.789 1.041

0.0309 ± 0.46

.41

ACD (mm)

3.11 ± 0.41

2.14 4.35

3.08 ± 0.41

2.03 4.15

0.0232 ± 0.15

.06

  1. PCI partial coherence interferometry, SS-OCT swept-source optical coherence tomography, SD standard deviation, AL axial length, Km mean keratometry, ACD anterior chamber depth
  2. *Paired t-test