Focus Adjustment; Calibration Laser Adjustment; Corrective Optician Lenses - Interacoustics EyeSeeCam Instructions For Use Manual

EyeSeeCam vHIT Instructions for Use - EN

3.5.2 Focus adjustment

The lens of the camera module allows you to focus the image. As eye sockets vary in physical
dimension from patient to patient, absolute focus requires adjustment to provide focused images – and
focused images are a precondition for stable eye tracking and noise-free data. The eye is in focus if
details of the individual patterns in the iris (iral signature) are well visible.
Figure 3-5 Focus adjustment for camera

3.5.3 Calibration laser Adjustment

The calibration laser, in the center of the goggle, has a knob that allows you to align the dots on the wall
by slightly rotating the knob until the 5 laser dots are aligned horizontally and vertically. Do not adjust
the calibration laser unduly. Adjust only if the dots have gone out of horizontal/vertical alignment.
Figure 3-6 Calibration laser adjustment

3.5.4 Corrective Optician Lenses

The vHIT goggle has mounts that allow to attach corrective optician lenses with a standard diameter of
38 mm (e.g. from http://www.frohnhaeuser.de/
patients with, e.g., Oculus trial frames.
). Such lenses are usually used for examining myopic
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