Zeiss VISUREF 150, User Manual

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Operation of the device
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The device provides the three illumination modes Standard , IOL and User-
defined , These modes coordinate the illumination parameters Reference ,
Ambient and Target .
•
According to the clinical application you should decide which
illumination mode is most appropriate for your measurement (see
Table 4).
•
If you do not change the illumination parameters, the device uses the
settings of the Standard illumination mode (see Table 4).
•
In case of a user-defined change of illumination parameters, the device
cannot perform keratometry. Keratometry values can only be measured
in Standard and IOL illumination mode.
Illumination mode Application Keratometry
Standard Eyes without pathological
finding
yes
IOL Eyes with implanted IOL or
eyes with slight lens clouding
(cataract)
yes
User defined Depending on user decision no
Table 4 Overview of illumination parameters in different illumination modes
Tap the Illumination button (Fig. 28) to configure the illumination
parameters. A pop-up window will open where you can set each parameter
to your specific needs.
Fig. 28 Pop-up window with unfolded illumination parameters