Table 1 Coefficient of inter-operator reproducibility and repeatability of central corneal thickness and anterior chamber depth, axial length and lens thickness measurements for different operators.

From: Repeatability, reproducibility, and comparison of ocular biometry using a new optical coherence tomography-based system and another device

 

Operator

Mean (mm)

Std.dev

Sw

TRT

CoV (%)

ICC

Central corneal thickness

Repeatability

A

0.5464

0.0407

0.0035

0.0096

0.6325

0.9929

Repeatability

B

0.5463

0.0413

0.0030

0.0082

0.5413

0.9950

Reproducibility

 

0.5464

0.0409

0.0032

0.0088

0.5783

0.9942

Lens thickness

Repeatability

A

4.0708

0.4000

0.0366

0.1014

0.8990

0.9918

Repeatability

B

4.0737

0.3953

0.0334

0.0925

0.8199

0.9930

Reproducibility

 

4.0723

0.3966

0.0357

0.0989

0.8765

0.9921

Axial length (AL)

Repeatability

A

23.5328

1.0414

0.0167

0.0463

0.0711

0.9997

Repeatability

B

23.5333

1.0427

0.0171

0.0473

0.0726

0.9997

Reproducibility

 

23.5326

1.0397

0.0169

0.0468

0.0718

0.9997

Anterior chamber depth (ACD)

Repeatability

A

3.4097

0.3985

0.0202

0.0558

0.5913

0.9975

Repeatability

B

3.4112

0.3966

0.0273

0.0757

0.8008

0.9953

Reproducibility

 

3.4105

0.3967

0.0236

0.0653

0.6911

0.9966

Number of eyes

56

Number of participants

56

  1. Std.dev standard deviation, Sw within-subject standard deviation, TRT test–retest repeatability, CoV within-subject coefficient of variation, ICC intraclass correlation coefficient.
Back to article page