Calibrate The Patient - Interacoustics EyeSeeCam vHIT Manual De Instrucciones

The red arrow in the top left image indicates how the pupil will move during such a camera rotation in roll. After this
rotation the pupil is centered horizontally (top right image). Then a yaw rotation of the camera aligns the lower eye lid
to an approximately horizontal orientation, as indicated by the red rotated line in the top right image. Finally, a camera
rotation in pitch will move the pupil vertically (red arrow in bottom left image) until the pupil is completely centered
(bottom right image).

Calibrate the patient

Start and stop standard calibration
You can begin testing without calibrating by just selecting a test and starting the impulses. In this case a
default calibration will be taken. This is a good solution for difficult situation or challenging patients, but we
still recommend that the user perform a calibration whenever possible.
To begin calibration, the patient is seated 1.5 meters from the wall where the red laser dots are
projected and is asked to hold their head still. Instruct the patient to alternate fixating on the 5 brightest
projected dots as announced by the examiner.
Figure 4.2.3-1 Calibration target with laser images.
Press Start when you are ready to begin recording. You will be able to see the eye looking at each
target as a cross appears in the Eye in Image area.
Figure 4.2.3-2 Calibration in progress screen. The big red dot in the Eye in Space plot (bottom right) indicates that the
patient should fixate on the right calibration dot.
EyeSeeCam vHIT - Instructions for Use - EN Page 15