Table 4 Intraobserver repeatability outcomes for intraocular lens calculation obtained using OA-2000 swept-source optical coherence tomography in cataract patients.

From: Precision of a new ocular biometer in eyes with cataract using swept source optical coherence tomography combined with Placido-disk corneal topography

Parameter

observer

Mean ± SD

Sr

Repeatability limit (r)

COV (%)

ICC (95% CI)

SRK/T (Φ = 2.5) (D)

1st

19.78 ± 1.97

0.12

0.33

0.60

0.996 (0.995 to 0.998)

2nd

19.78 ± 1.98

0.13

0.36

0.67

0.996 (0.994 to 0.997)

Holladay 1 (Φ = 2.5) (D)

1st

19.79 ± 2.04

0.13

0.37

0.68

0.996 (0.994 to 0.997)

2nd

19.79 ± 2.05

0.15

0.41

0.74

0.995 (0.993 to 0.997)

Hoffer Q (Φ = 2.5) (D)

1st

19.66 ± 2.16

0.15

0.41

0.75

0.995 (0.993 to 0.997)

2nd

19.66 ± 2.17

0.16

0.45

0.82

0.995 (0.992 to 0.996)

SRK/T (Φ = 3.0) (D)

1st

19.79 ± 1.96

0.11

0.30

0.54

0.997 (0.996 to 0.998)

2nd

19.80 ± 1.96

0.13

0.36

0.65

0.996 (0.994 to 0.997)

Holladay 1 (Φ = 3.0) (D)

1st

19.8 ± 2.03

0.12

0.33

0.61

0.997 (0.995 to 0.998)

2nd

19.81 ± 2.03

0.14

0.40

0.72

0.995 (0.993 to 0.997)

Hoffer Q (Φ = 3.0) (D)

1st

19.68 ± 2.16

0.13

0.36

0.67

0.996 (0.995 to 0.998)

2nd

19.69 ± 2.15

0.16

0.44

0.80

0.995 (0.992 to 0.996)

  1. SD = standard deviation, Sr = within-subject standard deviation, COV = within-subject coefficient of variation, ICC = intraclass correlation coefficient.
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