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PBL200051, Rev J
70 Operation
Verify the laser aiming beam accuracy—YAG
WARNING - Verifying the aiming beam is extremely important for the safe
operation of your laser equipment. Do not use the laser if the aiming beam is
not visible. Operating the laser without the aiming beam may result in laser
exposure to nontarget tissue and possible injury.
WARNING - Correct optical alignment is critical for accurate aiming of the
equipment. This pre-operative procedure should be performed daily.
1 Tape a piece of laser alignment thermal-sensitive paper (Kentek Zap-It® or
equivalent) onto the slit lamp headrest so that it is visible through the slit lamp
eyepieces. Do not use the slit lamp focus post as a target.
WARNING - Ensure that there are no reflective surfaces behind the paper
mounted on the forehead assembly.
Follow the original manufacturer’s instructions regarding the proper use of
thermal paper.
2 Turn on the system as instructed in “Turn on the system” section of this
manual. Verify that the laser is in standby mode.
3 Set the aiming beam to the highest intensity.
4 Look through the slit lamp eyepieces at the paper target. A red spot, the
aiming beam, should appear on the paper target. If the aiming beam is weak,
verify that the aiming beam is set to the highest intensity.
WARNING - Do not use the device if the aiming beam is set to the highest
intensity and is still weak or not visible. Doing so may cause accidental laser
exposure to the treatment room personnel or patient, and/or fire in the
treatment room.
5 Reduce the aiming beam to a comfortable intensity.
6 Adjust the eyepieces to the desired accommodations.
7 Adjust the slit width to full circle illumination and low intensity.
8 Swing the illumination tower to one side, if necessary, so that it does not
obstruct the aiming beam.
9 Position the slit lamp so that the aiming beams converge to form one spot on
the paper target.
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