Documentation set
6 Operation
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6.2 Operation with laser slit-lamp
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The image should remain sharply in focus at all magnifi-
cation levels. If not, the procedure should be repeated.
12. Make a note of the eyepiece settings for future treatment
sessions. In future you will need only to adjust the eyepieces to
these values.
13. If more than one physician uses the slit lamp, it is recom-
mended that a table be prepared with the individual refractive
powers and kept in a handy location near the system.
6.2.2 Positioning the contact lenses
Action
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Always use the correct contact lens for the intended appli-
cation.
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Hold the contact lens such that the laser beam meets the
incident surface at a right angle.
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Incorrect positioning of the contact lens will cause
distortion of the laser focus. This can lead to unwanted side
effects.
TIP:
As a rule, you will get the best overall view if a magnification
of 12x is selected on the slit lamp.
6.2.3 Laser treatment with laser slit lamp
6.2.3.1 Positioning and focusing the laser spot
WARNING!
Hazard due to laser radiation
Insufficient focusing of the laser beam may result in injury.
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Always focus the slit lamp so that the retina and laser spot are
both sharply in focus together, even if the laser spot appears
smaller in other positions.
Exact positioning of the laser spot is crucial for successful laser
treatment. This allows the laser power required to be minimized
and significantly reduces unwanted side effects.
Action
1. Set the laser spot diameter by rotating the knurled ring on the
slit lamp.
2. Using the slit lamp joystick control, carefully position the aiming
beam until the light spot appears sharply delineated and the
tissue to be treated is seen sharply in focus.
6.2.3.2 Laser configuration
Action
1. Start the laser console as described in Section Installation
2. Turn on the laser console using the key switch.
3. Set the desired laser parameters on the control panel in the
"Prepare" work step.
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