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Table 1 Intra-observer repeatability of ocular biological parameters measured using the new swept-source optical coherence tomography biometer in children before wearing orthokeratology lens

From: Effect of orthokeratology on precision and agreement assessment of a new swept-source optical coherence tomography biometer

ParameterObserverMean ± SDSwRCoV (%)ICC
AL (mm)1st25.15 ± 0.990.020.060.081.000
2nd25.15 ± 0.990.010.030.041.000
CCT (μm)1st537.59 ± 31.764.3812.130.810.981
2nd537.46 ± 31.494.0111.100.750.984
ACD (mm)1st3.72 ± 0.190.020.060.610.986
2nd3.73 ± 0.190.020.060.630.984
LT (mm)1st3.43 ± 0.140.030.090.910.953
2nd3.43 ± 0.140.030.080.830.960
Km (Φ = 2.5) (D)1st43.15 ± 1.450.100.280.230.995
2nd43.18 ± 1.440.080.220.180.997
Km (Φ = 3.0) (D)1st43.13 ± 1.460.090.260.210.996
2nd43.15 ± 1.460.070.190.160.998
CD (mm)1st11.96 ± 0.430.060.170.510.980
2nd11.96 ± 0.410.060.170.510.978
  1. AL= Axial length; CCT= central corneal thickness; ACD= anterior chamber depth (corneal epithelium to lens); LT= lens thickness; Km= mean keratometry; CD= corneal diameter; SD= standard deviation; Sw= within-subject standard deviation; R= reproducibility limit (2.77 Sw); CoV= within-subject coefficient of variation; ICC= intraclass correlation coefficient