Zeiss CIRRUS HD-OCT 500, User Manual

Page: 142 / 352

Posterior Segment
2660021169012 Rev. A 2017-12 CIRRUS HD-OCT User Manual
8-20
addition, poor signal strength, pigmentation of the Fundus, and peripapilliary atrophy can
occasionally cause misleading sub–RPE illumination findings.
To edit sub–RPE illumination:
1. Open an edit screen by clicking the Segmentation Tool (shown at left). The screen
displays the sub–RPE illumination segmentation as a colored region on the sub–RPE
slab. The current sub–RPE illumination segmentation becomes active for editing. The
edit screen also includes the OCT
en face
image with slice navigators and the
Horizontal B-scan tied to the navigator position.
cáÖìêÉ=UJNP=bÇáí=pìÄÓomb=pÉÖãÉåí~íáçå=aá~äçÖ
2. Use one of the available edit tools (shown clockwise at left) to modify the
segmentation boundaries:
• Pencil: Click and drag to draw with fine detail.
• Floodfill: Adds gross detail. To fill in a full lesion, draw the boundary of the lesion
with the pencil tool or the floodfill tool, click the floodfill icon, and then
click the lesion to fill it in.
• Eraser: Removes gross detail. To remove a large area, draw the boundary of the
area with the knife or eraser, click the eraser icon, then click the area to
erase.
• Knife: Click and drag to delete with fine detail.
3. Once you have completed editing, click Apply to complete the operation and return to
the analysis screen with the updated segmentation. On the analysis screen, the
segmentation is shown as an outline around the area that had been filled in on the
edit screen.
Slice
indicators