Zeiss VISULAS YAG III, User Manual

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Description of the device
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Settings of filter selector
White line pointing up: Full aperture combined with a heat-
absorbing filter.
White line to the patient: Blue filter for tonometry and
fluorescence observations.
White line to the physician: Red-free filter for contrast
enhancement during fundus
observation

A tonometer can be mounted to the slit lamp.
The tonometer support is mounted on the joint on the carrier arm.
The tonometer itself is attached by a magnet and fitted only when
required.
Beam delivery in the LSL YAG III laser slit lamp
An Nd:YAG laser (1, Fig. 6) (mini-laser module) generates the therapy beam.
The beam passes through the energy attenuator (5, Fig. 6), is then combined
with the aiming beam (6, Fig. 6) and coupled into the viewing path of the
corneal microscope by means of a coupling mirror (11, Fig. 6).
The prism head of the slit illumination system (13, Fig. 6) is lowered by 10°.
The lens system (2, Fig. 6) can be used to adjust the focus shift.

Note for VISULAS YAG III:
In the central illumination position, a small part of the therapy
beam is clipped.