|
Parameter
|
Operator
|
Mean ± SD (μm)
|
Sw (μm)
|
TRT (μm)
|
ICC (95% CI)
|
|---|
|
Total RMS
|
1st
|
1.27 ± 0.42
|
0.05
|
0.14
|
0.985 (0.979–0.990)
|
|
2nd
|
1.29 ± 0.42
|
0.07
|
0.19
|
0.973 (0.961–0.982)
|
|
Higher-order RMS
|
1st
|
0.63 ± 0.18
|
0.03
|
0.10
|
0.964 (0.948–0.976)
|
|
2nd
|
0.64 ± 0.18
|
0.04
|
0.10
|
0.960 (0.942–0.973)
|
|
Coma Z (3, ± 1)
|
1st
|
0.36 ± 0.20
|
0.04
|
0.10
|
0.967 (0.952–0.978)
|
|
2nd
|
0.36 ± 0.20
|
0.04
|
0.10
|
0.967 (0.952–0.978)
|
|
Trefoil Z (3, ± 3)
|
1st
|
0.17 ± 0.08
|
0.04
|
0.12
|
0.768 (0.682–0.838)
|
|
2nd
|
0.19 ± 0.09
|
0.05
|
0.13
|
0.763 (0.676–0.834)
|
|
SA Z (4, 0)
|
1st
|
0.40 ± 0.12
|
0.02
|
0.06
|
0.969 (0.955–0.980)
|
|
2nd
|
0.40 ± 0.12
|
0.02
|
0.06
|
0.967 (0.953–0.978)
|
|
Ast II Z (4, ± 2)
|
1st
|
0.13 ± 0.09
|
0.02
|
0.06
|
0.951 (0.929–0.967)
|
|
2nd
|
0.14 ± 0.09
|
0.02
|
0.07
|
0.931 (0.900–0.953)
|
- SD = standard deviation; Sw = within-subject standard deviation; TRT = test-retest repeatability (2.77 Sw); ICC = intraclass correlation coefficient; RMS = root mean square; SA = spherical aberration; Ast = astigmatism
