Research Article
Evaluation of the Repeatability and the Reproducibility of AL-Scan Measurements Obtained by Residents
Table 1
Comparison of three consecutive biometric measurements taken by both ophthalmology residents (Repeatability).
| | Parameter | Resident | 1st measurement
Mean ± SD
(Min–Max) | 2nd measurement
Mean ± SD
(Min–Max) | 3rd measurement
Mean ± SD
(Min–Max) | ICC (Confidence interval) |
| | (D) | 1 | (40.18–45.61) | (40.08–46.30) | (40.23–45.67) | 0.995
(0.993–0.996) | | 2 | (40.08–45.79) | (40.13–45.73) | (39.94–45.67) | 0.993
(0.99–0.995) |
| | (D) | 1 | (40.37–47.74) | (40.42–47.20) | (40.37–47.14) | 0.993
(0.991–0.995) | | 2 | (40.52–47.07) | (40.37–47.20) | (40.37–47.27) | 0.988
(0.984–0.991) |
| | WTW (mm) | 1 | (10.7–13.2) | (10.7–13.2) | (10.8–13.2) | 0.937
(0.917–0.954) | | 2 | (10.8–13.2) | (10.7–13.2) | (10.7–13.2) | 0.96
(0.947–0.97) |
| | CCT () | 1 | (479–677) | (482–676) | (480–676) | 0.97
(0.96–0.978) | | 2 | (478–674) | (482–673) | (481–677) | 0.96
(0.947–0.971) |
| | ACD (mm) | 1 | (2.8–4.67) | (2.81–4.67) | (2.8–4.68) | 0.995
(0.993–0.996) | | 2 | (2.79–4.67) | (2.8–4.69) | (2.8–4.69) | 0.995
(0.993–0.996) |
| | PS (mm) | 1 | (3.4–8.3) | (3.2–8.4) | (3.1–8.3) | 0.872
(0.832–0.905) | | 2 | (3.3–8.3) | (3.2–8.4) | (3–8.3) | 0.905
(0.875–0.929) |
| | AL (mm) | 1 | (20.89–27.23) | (20.9–27.2) | (20.9–27.23) | 0.999
(0.998-0.999) | | 2 | (20.89–27.23) | (20.91–27.22) | (20.91–27.23) | 0.999
(0.998-0.999) |
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