Lateral Impulses; Prepare; Display Laser During Hit - Interacoustics EyeSeeCam vHIT Gebrauchsanweisung

EyeSeeCam vHIT Instructions for Use – EN
4.4

Lateral impulses

Click on Head Impulse – Lateral to get started.

4.4.1 Prepare

After selecting Prepare the head impulse testing screen is displayed. The examiner needs to instruct the
patient to focus on the target in front of them and to relax their neck muscles throughout the impulses
The correct technique for positioning the hands during the impulses is shown below.
Figure 4-17 Proper hand placements for impulses.

4.4.2 Display laser during HIT

Before starting a test you can decide if you want to use an external target you place on the wall or if you
want to use the lights from the laser to project fixation targets for the patient to look at before and
between the impulses.
This feature will automatically toggle the laser lights on between impulses and off during the impulses.
Some people will opt to use the center laser light as the target for the patient to focus on at the onset of
the impulse. If you choose to use a method for generating impulses where the patient is rotated 45
degrees and gazing straight ahead, the availability of these laser dots will eliminate the need for you to
move the target on the wall.
Figure 4-18 Toggle Training Guide On
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