Chapter 4 CATALYS® System Procedure
Page 180 of 314 Part Number: 0160-6411, Rev A, 02/2019
Software Release: cOS 5.00
3. Position the patient’s head in the center of the headrest to maximize eye exposure and
to ensure that the top of the suction ring is parallel to the floor when vacuum is
achieved. The proper head position is most often obtained by leveling the patient’s
forehead and chin and turning the head away from the eye that is being operated on.
4. When the patient’s head is in the proper position, stabilize the head with the head clamp
(if using the Mobile Patient Bed) or the strap and soft gray wedges (if using the patient
chair).
NOTE
Emphasize to the patient the importance of maintaining this head position.
CAUTION
Ensure that the patient is clear of the laser and the disposable lens before rotating the
bed/chair under the laser.
5. If using the Mobile Patient Bed, place the bed in pivot lock mode (see Placing the Mobile
Patient Bed in Pivot Lock Mode on page 182 for instructions).
6. Rotate the bed/chair under the laser to pre-align the laser height.
QUICK TIP: PATIENT POSITIONING
Pre‐align the patient’s treatment eye with the disposable lens on the system to minimize
bed/chair movement required during docking and, therefore, docking time.
QUICK TIP: PATIENT POSITIONING
When pre‐aligning, do not raise the patient too close to the disposable lens, because the
suction ring or the patient’s nose may hit the disposable lens during docking. This can
cause more suction ring movement, which can increase the risk for a suction loss. Allow
for extra space when treating a right eye.
7. If using the Mobile Patient Bed, use the control pendant (or the joystick control, if the
bed is already connected to the CATALYS® System) to raise the bed/patient until the
disposable lens is approximately 2 inches above the eye. If using the patient chair, use
the joystick to raise the patient/chair until the disposable lens is approximately 2 inches
above the eye. This will allow the suction ring to glide under the disposable lens and yet
decrease the amount of time under suction by minimizing the amount of upward
movement necessary during the docking process.
QUICK TIP: PATIENT POSITIONING
Allow for extra vertical space when treating a patient’s right eye to ensure adequate
clearance for your hand and the suction ring when the patient is rotated under the
system.
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