Appendix C – LIQUID OPTICS™ Interface 12 Quick Reference Guide
Page 296 of 314 Part Number: 0160-6411, Rev A, 02/2019
Software Release: cOS 5.00
This guide is intended to be a simple reference tool for treating a patient using the LIQUID
OPTICS™ Interface 12.
Plan
When planning to treat a patient using the LIQUID OPTICS™ Interface 12, keep in mind that the
clear aperture of the suction ring will measure 12 mm in diameter before placement on the
patient’s eye, and then will reduce to 11.5 mm in diameter once applied to the patient’s eye.
INTEGRAL GUIDANCE System software prevents cataract incisions from being placed too close
to the LIQUID OPTICS™ Interface 12 suction ring. In the event that a planned incision is placed
too close to the LIQUID OPTICS™ Interface 12 suction ring, an error will appear on the screen,
with a “modifications required” message displayed. If a planned incision is placed too close to
the suction ring, the incision will either need to be moved or suppressed in order to complete
the treatment.
CAUTION
Confirm that the LIQUID OPTICS™ Interface 12 package has a purple background on the label of
the sterile packaging, as opposed to the LIQUID OPTICS™ Interface, which has a black
background on the label of the package.
Engage
To use the LIQUID OPTICS™ Interface 12, proceed as follows:
1. Alignment Mark Placement: Consider placing marks used to compensate for
cyclorotation on the limbus, or possibly more central for better visualization when
applying the suction ring and aligning the fiducial marks inside of the LIQUID OPTICS™
Interface 12. Be careful not to place marks where a CATALYS® System-created incision is
planned, as this may prevent the incision from being created properly.
2. Docking: When docking the LIQUID OPTICS™ Interface 12 to the patient’s eye, avoid
pressing down too firmly, as excessive pressure can possibly cause the patient
discomfort. After vacuum has been achieved and the CATALYS® System gives an audible
and visual confirmation of suction, gently release some of the downward pressure
applied onto the LIQUID OPTICS™ Interface 12, and check for any hissing noise coming
from the suction ring. Audible hissing may be a sign of an inadequate vacuum seal of the
suction ring onto the patient’s eye, and an inadequate vacuum seal can result in a
suction loss later.
3. Centration: Consider using a penlight or additional illumination to help center the
LIQUID OPTICS™ Interface 12 concentrically on the patient's eye. The penlight can also
serve as a fixation point for the patient. Because movement of the LIQUID OPTICS™
Interface 12 may be limited once inserted onto the eye and between the upper and
lower eyelids, consider guiding the patient to focus on the fixation target as an aid to
center the LIQUID OPTICS™ Interface 12 onto the cornea, inside of the suction ring.
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