Measurement results are displayed separately for right eye (OD) and left eye (OS).
Gaze chart OD
Spheres (SPH)
in diopters
Pupil diameter
(Ø)
in millimeters
Pupil distance
(PD)
in millimeters
If measurement results exceed measurement range, only hyperopia (HYP) or myopia (MYO) is
displayed instead of a quantitative numerical value.
Gaze charts are displayed for each eye on left and right screen borders. These illustrate the
lines of vision during measurement. Red dots are plotted if an eye is aligned more than 10
degrees off camera axis (i.e. outside the inner circle). In this case measurement is aborted
inconclusively.
Note:
If a child is not looking at the camera lens in the middle behind the hexagon during
the measurement, this can lead to a cancellation of the measurement or incorrect
measured values of the visual symmetry. Therefore do not use any other external
fixation aids!
The device compares the line of vision of both eyes and indicates the extent of Asymmetry
(ASY) in between. In this regard, an ASY of 0° indicates perfect symmetry. Asymmetric lines of
vision can be caused by strabismus or decentral fixation. The angle displayed on screen is not
the angle of strabismus!
Screenshot 5: Check measurement result
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Gaze chart OS
Status line
Cylinder (CYL)
in diopters
Axis (A)
in degrees
Asymmetry (ASY)
of the gaze
direction
in degrees
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