![background image](http://html.mh-extra.com/html/zeiss/cirrus-hd-oct-500/cirrus-hd-oct-500_user-manual_927494333.webp)
CIRRUS HD-OCT User Manual
2660021169012 Rev. A 2017-12
Appendix
C-3
Tables 4 and 5 show the mean difference in CCT, ATA, ACD and Pachymetry measurements
between the CIRRUS HD-OCT Model 5000 and Visante OCT for the Normal Cornea and
Corneal Pathology groups.
Table 6 shows the Pachymetry measurements of the Post-LASIK group, comparing the
results from the CIRRUS HD-OCT Model 5000 and Visante OCT.
Table C-1: Repeatability and Reproducibility of CIRRUS HD-OCT 5000
Normal Cornea Group
Scan Type
Repeatability
Reproducibility
Parameter
Mean
SD
Limit
CV%
SD
Limit
CV%
Anterior Chamber
CCT
549.5
9.749
27.297
1.774
11.897
33.311
2.165
Angle to Angle
12.030
0.171
0.479
1.423
0.300
0.840
2.494
ACD
2.858
0.034
0.096
1.199
0.046
0.128
1.601
Pachymetry
Center
528.3
1.197
3.350
0.226
1.628
4.557
0.308
Inner Nasal
552.8
2.674
7.486
0.484
3.218
9.011
0.582
Inner Superior
557.9
3.399
9.518
0.609
4.261
11.930
0.764
Inner Inferior
541.9
2.714
7.598
0.501
3.306
9.257
0.610
Inner Temporal
532.5
1.870
5.237
0.351
2.085
5.837
0.392
Outer Nasal
588.9
4.061
11.370
0.690
4.739
13.268
0.805
Outer Superior
599.7
4.786
13.402
0.798
6.897
19.312
1.150
Outer Inferior
572.4
3.511
9.830
0.613
5.326
14.912
0.930
Outer Temporal
554.8
3.170
8.875
0.571
3.430
9.603
0.618
All statistics are estimated from two-way random-effect ANOVA model with random effects opera-
tor/device, eye and interaction between operator/device and eye.
Mean = Intercept of the ANOVA model
Repeatability SD = Square root of the residual variance.
Reproducibility SD = Square root of the sum of the operator/device variance, the interaction variance and
the residual variance.
Repeatability limit = 2.8 x Repeatability SD.
Reproducibility limit = 2.8 x Reproducibility SD.
Repeatability CV% = (Repeatability SD)/Intercept x 100%.
Reproducibility CV% = (Reproducibility SD)/Intercept x 100%.
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 ...