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3.9.4.3
Performing the test
A three-dimensional head model with the semicircular canals (
) is displayed in the upper right
Figure 3.9-6
corner of the screen. The EyeSeeCam head sensor will automatically reset if the sensor is left still. At the
start of the test, have the patient look straight ahead and keep the head still. The EyeSeeCam head sensor
will then reset and the head model should appear looking forward. As the head impulses are performed, the
activated semicircular canal pair are highlighted in blue and red depending on the direction of the impulse.
Figure 3.9-6 Head model with highlighted semicircular canals
When the operator performs the head impulse, the software will display the head and eye movements in the
appropriate impulse graph depending on the impulse direction. If the head movement fits the swoosh velocity
profile, the head impulse will be accepted and show a green check mark in the upper right corner of the
). Rejected head impulses will display a red x in the upper right corner.
impulse graph (
Figure 3.9-7
Figure 3.9-7 Example of EyeSeeCam test showing a green checkmark (LARP)
The test will end automatically once the required number of successful head impulses are performed in both
directions. The timer is replaced with the head impulse counter with the head impulses separated and the
required number of successful head impulses at the top. The clinician can stop the test at any time using
either the Enter key on the RF Remote, the STOP button on the screen, or using the foot pedal.
D-0134090-A – 2022/11
VisualEyes™ - Instructions for Use - EN
Page 88
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