User's Manual Part 5

8065751131 6.9
3. If the diopter adjustment(s) of the microscope eyepieces are not accurate, the object and
the laser focal point will not be in the same plane (for values between 50 µm and 500
µm). Consequently, the laser spot size on the fundus will be larger than the values set
on the zoom.
4. To position the laser spot, use the procedures outlined in the previous section.
5. Activate the treatment laser only if the target area has been clearly localized and
irradiation by a treatment laser is warranted. Follow the operating instructions for the
PurePoint
™
laser to operate the laser control console and activate the laser treatment
™
laser to operate the laser control console and activate the laser treatment
™
beam.
WARNING!
If the red aiming beam is not operating, do not use the system; contact Alcon
Technical Services.
Figure 6-8 Laser Spot Focus
Table 6-2
Adaptation Troubleshooting
SYMPTOM
No Aiming Beam
(red)
No Treatment Beam
(532nm - green)
Laser spot cannot
be positioned
PROBABLE CAUSE
Laser not switched on.
Aiming beam set too low.
Fiber optic cable not connected.
Aiming beam inoperative.
Laser not switched on.
Doctor Protection Filter not
properly connected to Laser.
Filters not engaged.
Fiber optic cable not connected.
Zero position lock knob in locked
position.
CORRECTIVE ACTION
Turn on
Laser.
Turn up intensity.
Connect fi ber.
Contact Technical Services.
Turn on Laser .
Connect fi lter cable to back
panel of
Laser.
Properly engage fi lters.
Connect fi ber.
Release zero position lock
knob.
Troubleshooting
The table below is provided as an aid in troubleshooting. Normal care should be used during
the troubleshooting process to prevent the introduction of additional problems.