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Tracking and Repeat Scans
2660021169012 Rev. A 2017-12
CIRRUS HD-OCT User Manual
6-36
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Troubleshooting FastTrac
and
illustrate cases where tracking is not progressing due to
several of the reasons mentioned above.
Indicator
Potential Problem
What you should do
OCT image
centered
The OCT image is not centered
properly and the scan is too high or
too low in the window.
Use the up and down arrows (or
mouse wheel) to center the scan.
For patients with certain pathologies
or anatomical features, it may be
difficult to ensure centering across all
B-scans in a cube.
Cancel the scan. On the
Acquire Scan
screen, turn off the monitoring of the
Z position. Then, initiate a new scan
with FastTrac.
Other factors
for tracking
Iris image – scan may not be aimed
through the pupil.
Adjust the scan position in the Iris
Viewport.
Fundus image – focus has drifted
away from patient’s refraction.
Manually adjust using the Focus
controls.
Patient fixation issues.
Communicate with the patient to
ensure they are fixating in the same
position as at the start of the scan.
Excessive blinking or moving.
Communicate with the patient to
reduce blinking and movement.
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 ...