Appendix
2660021169012 Rev. A 2017-12
CIRRUS HD-OCT User Manual
C-6
Table C-4: Mean Difference between CIRRUS HD-OCT 5000 and Visante OCT for the
Normal Cornea Group
Scan Type
CIRRUS
Visante
Difference
95% CI
95% LOA
Parameter
N
Mean (SD)
Mean (SD)
Mean (SD)
Mean Difference
p-value Mean Difference
Anterior Chamber
CCT
46
551.5 (33.9)
537.8 (33.8)
13.7 (16.7)
8.7, 18.6
<.001
-19.8, 47.1
Angle to Angle
46 12.004 (0.538) 11.638 (0.480)
0.365 (0.371)
0.255, 0.476
<.001
-0.376, 1.107
ACD
46
2.860 (0.448)
2.948 (0.459)
-0.088 (0.064)
-0.107, -0.069
<.001
-0.215, 0.039
Pachymetry
Center
45
528.3 (32.7)
527.3 (32.3)
1.0 (4.9)
-0.4, 2.5
0.168
-8.8, 10.8
Inner Nasal
45
552.7 (33.2)
554.0 (33.6)
-1.3 (9.1)
-4.0, 1.4
0.347
-19.5, 16.9
Inner Superior
45
558.7 (36.4)
558.0 (35.4)
0.7 (11.6)
-2.8, 4.2
0.692
-22.5, 23.9
Inner Inferior
45
541.9 (32.6)
542.8 (34.9)
-0.9 (6.8)
-2.9, 1.1
0.372
-14.5, 12.6
Inner Temporal
45
533.0 (32.9)
537.9 (32.4)
-4.9 (6.9)
-6.9, -2.8
<.001
-18.7, 8.9
Outer Nasal
45
589.2 (33.8)
598.2 (36.3)
-9.1 (13.8)
-13.2, -4.9
<.001
-36.6, 18.5
Outer Superior
44
601.7 (39.4)
606.3 (41.3)
-4.6 (22.7)
-11.5, 2.3
0.183
-50.1, 40.8
Outer Inferior
45
574.2 (33.1)
583.7 (38.7)
-9.6 (12.5)
-13.3, -5.8
<.001
-34.6, 15.5
Outer Temporal
45
555.8 (33.5)
571.3 (33.7)
-15.5 (11.3)
-18.9, -12.1
<.001
-38.1, 7.2
N is the number of eyes with measurements.
Difference = CIRRUS - Visante.
ACD of Visante was adjusted by CCT (i.e. ACD = original ACD - CCT/1000).
95% confidence interval (CI) for mean difference is based on t-distribution.
p-value is based on paired t-test.
95% Limits of Agreement (LOA) = mean difference ± 2 x difference SD.
Summary of Contents for CIRRUS HD-OCT 500
Page 1: ...2660021156446 B2660021156446 B CIRRUS HD OCT User Manual Models 500 5000 ...
Page 32: ...User Documentation 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual 2 6 ...
Page 44: ...Software 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual 3 12 ...
Page 58: ...User Login Logout 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual 4 14 ...
Page 72: ...Patient Preparation 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual 5 14 ...
Page 110: ...Tracking and Repeat Scans 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual 6 38 ...
Page 122: ...Criteria for Image Acceptance 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual 7 12 ...
Page 222: ...Overview 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual 9 28 ...
Page 256: ...Log Files 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual 11 18 ...
Page 308: ...Appendix 2660021169012 Rev A 2017 12 CIRRUS HD OCT User Manual A 34 ...
Page 350: ...CIRRUS HD OCT User Manual 2660021169012 Rev A 2017 12 I 8 ...
Page 351: ...CIRRUS HD OCT User Manual 2660021169012 Rev A 2017 12 ...