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Table 2 Interobserver reproducibility of the ZW-30

From: Evaluation of a new dynamic real-time visualization 25 kHz swept-source optical coherence tomography based biometer

Parameter

Mean ± SD

Sw

TRT

CoV (%)

ICC (95% CI)

AL (mm)

25.79 ± 1.16

0.00

0.01

0.02

1.000 (1.000 to 1.000)

CCT (μm)

537.73 ± 31.18

1.45

4.02

0.27

0.998 (0.996 to 0.999)

AQD (mm)

3.10 ± 0.27

0.01

0.03

0.40

0.998 (0.996 to 0.999)

ACD (mm)

3.64 ± 0.27

0.01

0.03

0.33

0.998 (0.996 to 0.999)

LT (mm)

3.72 ± 0.28

0.01

0.04

0.34

0.998 (0.996 to 0.999)

Km (D)

43.36 ± 1.46

0.08

0.23

0.19

0.997 (0.994 to 0.998)

AST (D)

1.10 ± 0.65

0.10

0.27

–

0.978 (0.961 to 0.988)

J0 (D)

− 0.48 ± 0.36

0.06

0.16

–

0.975 (0.955 to 0.986)

J45 (D)

− 0.03 ± 0.20

0.05

0.13

–

0.945 (0.903 to 0.969)

CD (mm)

11.95 ± 0.42

0.04

0.11

0.34

0.991 (0.984 to 0.995)

  1. AL = axial length; CCT = central corneal thickness; AQD = aqueous depth; ACD = anterior chamber depth; LT = lens thickness; Km = mean keratometry; AST = astigmatism; CD = corneal diameter; SD = standard deviation; Sw = within-subject standard deviation; TRT = test–retest repeatability (2.77 Sw); CoV = within-subject coefficient of variation; ICC = intraclass correlation coefficient; CI = confidence interval
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Eye and Vision

ISSN: 2326-0254