Chapter 3 Software Navigation
Part Number: 0160-6411, Rev A, 02/2019 Page 133 of 314
Software Release: cOS 5.00
Customizing Surface Fits
To custom fit a particular ocular surface, press the colored icon for that ocular surface. After
adjusting and verifying the ocular surface to be customized, press the DONE button to return to
the main Surface Mapping Review Screen. Repeat these steps until all surface fits match the
ocular surfaces displayed on the OCT image.
NOTE
An asterisk displays next to the icons for the ocular surfaces with custom fits.
Cornea Anterior/Posterior and Lens Anterior/Posterior
When custom fitting the Cornea Anterior, Cornea Posterior, Lens Anterior, and Lens Posterior
surfaces, slider icons will appear for custom fitting the surface. The middle slider on each
image will move all three sliders on that particular image. When moving the slider, the
highlighted surface will disappear to allow accurate positioning of each slider over the image.
Start the custom fit by moving the middle sliders to the ocular surface for both axial and sagittal
images. Next, move the two side sliders to the surface for both images. When all six sliders are
on the ocular surface, custom fit for the particular surface is complete. The process can be
repeated if the fit is not satisfactory. To revert to the automatically detected ocular surface,
press the icon.
NOTES
You have the option of selecting a 2.5 mm diagnostic lens thickness for the Lens Posterior
surface. Be aware that this may affect capsulotomy and/or arcuate centration if the scanned
capsule centration method is selected.
It is normal during the custom fit procedure for unusual fitting overlay to occur due to varying
slider positions.
Pupil/Iris and Limbus
When custom fitting the Pupil and Limbus surfaces, use the image of the eye (shown from the
anterior) on the left side of the screen. Press inside the marked area, and move the selected
area to an area of your choice. To increase or decrease the size of the circle, touch on or outside
the circle, and slide your finger away from or toward the center of the circle. To custom fit the
Iris plane, use the slider icons in the sagittal and axial cross-section images.
Custom Cyclorotation Compensation
Cyclorotation compensation adjustments are available for all corneal incisions, with the same
cyclorotation compensation angle applied to all corneal incisions in a given treatment plan
(unless cyclorotation compensation has been turned off for cataract incisions).
The cyclorotation compensation adjustment can be selected as either suction ring position-
based or it can be adjusted by the user:
• For suction ring-based cyclorotation compensation, the rotation angle of the patient
suction ring is detected and used as the cyclorotation compensation angle.
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