Research Article
Reliability of a New Swept-Source Optical Coherence Tomography Biometer in Healthy Children, Adults, and Cataract Patients
Table 3
Intraobserver repeatability outcomes for biometric measurements obtained using IOLMaster 700 swept-source optical coherence tomography in cataract patients.
| Parameter | Observer | Mean ± SD | Sw | TRT | CoV (%) | ICC (95% CI) |
| AL (mm) | 1st | 23.6 ± 1.73 | 0.02 | 0.04 | 0.07 | 1.000 (1.000 to 1.000) | 2nd | 23.6 ± 1.73 | 0.01 | 0.02 | 0.04 | 1.000 (1.000 to 1.000) | CCT (μm) | 1st | 534.09 ± 32.64 | 2.48 | 6.88 | 0.46 | 0.994 (0.992 to 0.996) | 2nd | 533.69 ± 32.44 | 2.61 | 7.24 | 0.49 | 0.994 (0.991 to 0.995) | ACD (mm) | 1st | 2.87 ± 0.36 | 0.01 | 0.02 | 0.25 | 1.000 (0.999 to 1.000) | 2nd | 2.88 ± 0.36 | 0.02 | 0.06 | 0.73 | 0.997 (0.995 to 0.998) | LT (mm) | 1st | 4.61 ± 0.37 | 0.01 | 0.02 | 0.13 | 1.000 (1.000 to 1.000) | 2nd | 4.61 ± 0.37 | 0.01 | 0.02 | 0.16 | 1.000 (0.999 to 1.000) | Km (D) | 1st | 44.29 ± 1.57 | 0.09 | 0.26 | 0.21 | 0.996 (0.995 to 0.997) | 2nd | 44.28 ± 1.57 | 0.10 | 0.28 | 0.23 | 0.996 (0.994 to 0.997) | WTW (mm) | 1st | 11.76 ± 0.41 | 0.12 | 0.33 | 1.01 | 0.922 (0.895 to 0.944) | 2nd | 11.75 ± 0.43 | 0.15 | 0.41 | 1.25 | 0.893 (0.856 to 0.922) |
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AL = axial length, CCT = central corneal thickness, ACD = anterior chamber depth, LT = lens thickness, K = keratometry, WTW = white to white, SD = standard deviation, Sw = within-subject standard deviation, TRT = test-retest repeatability (2.77 Sw), CoV = within-subject coefficient of variation, and ICC = intraclass correlation coefficient.
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