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a) One or both pupils are not completely displayed on the screen, e.g. eyelashes
or the eyelid is partially occluding the pupil. The mother should lift the child’s
eyelid gently. Repeat the measurement.
b) If the corneal reflexes appear on one gaze chart as red point clouds and on the
other as green point clouds, the asymmetry of the corneal reflexes is ≥ 10
degrees. In this case, it is not possible to perform a binocular measurement.
You can however measure the eyes individually (see 6. Monocular
measurement).
c) One or both pupils show different brightness patterns. This indicates media
blurring, corneal damage, a foreign particle or other reasons.
Step 4: Measurement results
Measurement results:
Refraction: - Sphere [dpt]
- Cylinder [dpt]
- Axis [º]
Corneal reflexes: Symmetry of corneal reflexes [º]
Pupil diameter: Average [mm]
Pupil distance: PD [mm]
Gaze chart: Position of corneal reflexes in relation to pupil centre [º]
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