Zeiss CIRRUS HD-OCT 500, User Manual

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CIRRUS HD-OCT User Manual 2660021169012 Rev. A 2017-12
Posterior Segment
8-23
The screen allows editing the fovea location and navigating through the B-scans. Visually
evaluate the image to determine if the segmentation lines are correctly finding the inner
boundary of the Ganglion Cell layer and outer boundary of the Inner Plexiform Layer in
such cases.
NOTE: The repeatability of GCA measurements is dependent upon consistent and accurate
identification of the fovea location. The system has an automatic fovea finder. Operators
should rigorously check that the software was able to find the fovea location and evaluate
if the location is correct.
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If it is determined that the location was not correct, the location should be manually
corrected. Manually move the annulus location and associated circle placements to the
correct location.
Good Fovea Centering Bad Fovea Centering
Correct Min Values
Poor Min Value (OS)