Guidelines For Anterior Chamber Scan Acquisition - Zeiss CIRRUS HD-OCT 500 User Manual

CIRRUS HD-OCT User Manual
horizontally. The scan is adjustable from –89 to 90 degrees, though rotation may reduce
the field The 5.8 mm scan depth is achieved by allowing the source and mirror images to
overlap. Note that in the overlap region (indicated by blue overlay), source image detail
may be compromised. This scan requires the Anterior Chamber external lens. The Anterior
Chamber Scan provides the data used for Anterior Chamber measurements
Segment Scans" on page
The Acquire screen displays the position of the Anterior Chamber scan pattern on the live
iris image. The OCT B-scan image on the right displays the cornea and mirror image of the
scan. The Anterior Chamber scan requires the Anterior Chamber external lens.
1 Mirror iris image
2 Cornea image
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Guidelines for Anterior Chamber Scan Acquisition

• Attach the external Anterior Chamber lens to the instrument lens mount, see
"Attaching an External Lens" on page
• Instruct the patient to fixate on the center of the fixation target even though it may
not appear to be in focus.
Anterior Segment Scans
6-6).
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4
3 Mirror cornea image
4 Iris image
6-8.
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("Anterior
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2
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5 Lens of the eye
6-9