Comparison of Two Wavefront Autorefractors: Binocular Open-Field versus Monocular Closed-Field
Table 5
Intersession repeatability of oblique cylindrical vector (J45) obtained with both binocular open-field (Eye Refract) and monocular closed-field (VX110) autorefractors in terms of mean difference between sessions (bias), its standard deviation (SD), repeatability (Sr), and its 95% limit (r).
Wavefront autorefractor
Group
J45
Session 1-session 2
Session 1–session 3
Session 2-session 3
Repeatability [95% limit] (D)
Eye refract
Total
Bias ± SD (D)
−0.02 ± 0.20
−0.01 ± 0.15
0.01 ± 0.11
0.11 [0.30]
value
0.812
1.000
1.000
Teenagers
Bias ± SD (D)
0.00 ± 0.06
0.02 ± 0.10
0.02 ± 0.10
0.06 [0.18]
value
1.000
1.000
1.000
Adults
Bias ± SD (D)
0.00 ± 0.10
0.00 ± 0.09
0.00 ± 0.07
0.06 [0.18]
value
1.000
1.000
1.000
Presbyopes
Bias ± SD (D)
−0.05 ± 0.28
−0.04 ± 0.20
0.01 ± 0.13
0.15 [0.41]
value
0.671
0.565
1.000
VX110
Total
Bias ± SD (D)
0.02 ± 0.10
0.02 ± 0.07
0.00 ± 0.10
0.06 [0.18]
value
0.215
0.031
1.000
Teenagers
Bias ± SD (D)
0.02 ± 0.07
0.01 ± 0.06
0.00 ± 0.07
0.04 [0.12]
value
0.831
0.796
1.000
Adults
Bias ± SD (D)
−0.01 ± 0.07
0.00 ± 0.06
0.01 ± 0.07
0.04 [0.12]
value
1.000
1.000
1.000
Presbyopes
Bias ± SD (D)
0.04 ± 0.12
0.03 ± 0.08
−0.01 ± 0.12
0.08 [0.77]
value
0.160
0.038
1.000
The statistical comparison was done between sessions. , one-way ANOVA for paired samples with Bonferroni correction.
