Software Guide; Care And Maintenance - Haag-Streit LENSTAR LS 900 Mode D'emploi

.. White-to-white distance
The white-to-white distance (WW) is determined using the image of
the iris and the eye radii obtained from keratometry.
The value displayed corresponds to the diameter of an ideal circle.
(Figure 56)
.. Pupillometry and visual axis
Pupil diameter (Ø) corresponds to the diameter of an ideal circle,
with the smallest error square to the established pupil border. At the
same time, the shift of visual axis towards the centre of the pupil is
provided. The calculated dimensions are located on the theoretically
derived level of the iris. Image enlargement achieved by breaking up
the eye is disregarded. (Figure 57)

 SOFTWARE GUIDE

Device operation for carrying out an examination is set out in a se-
parate guide, together with a description of EyeSuite
software

 CARE AND MAINTENANCE

BEWARE
• Biometer housing parts should only be removed by
trained personnel.
• The ON/OFF switch does not disconnect the bio-
meter from the mains. Before removing housing
parts, the device must always be disconnected from
mains power by unplugging the mains power cable.
• Repairs should only be undertaken by suitably
trained, authorized, technical staff. Improper repairs
may result in considerable risk to patient and ope-
rator.
• If parts must be replaced, only original spare parts
supplied by HAAG-STREIT or its agent should be
used.
• Guarantee claims cannot be enforced if instructions
in the User Guide have been ignored.
The LS 900 is practically maintenance free and only requires mi-
®
nimal care to provide complete satisfaction over a long working life.
However, we recommend instructing a service engineer to overhaul
the biometer periodically. HAAG-STREIT or your local agent will be
happy to provide further information.
. Function check
The inspection gauge (Figure 58) supplied with the device will assist
the user in checking the proper functioning of the unit. This check
takes place for the first time when the device is commissioned. Sub-
sequent test intervals (1 week) will be specified by the software (mes-
sage displayed). For exact procedure see software guide.
If test results fall outside tolerances, a corresponding message will
be displayed and the device should be taken out of service. Please
inform Haag-Streit Service.
application
TM
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