How is nystagmus diagnosed?
In practice, the anamnesis is usually discussed, focusing on previous illnesses, family stress, symptoms and when they occur. During the examination, it may be necessary to assume different head and body positions in order to subsequently describe a possible change in vision.
Frenzel glasses with special lenses support the diagnosis of nystagmus and are especially suitable for determining spontaneous nystagmus. Put on like ordinary glasses, the lenses are used to enlarge the eyes and at the same time prevent objects from fixing in the room. In this way, rapid eye movements are not prevented and can be examined more easily. Frenzel glasses are not suitable for diagnosing nystagmus in the direction of sight.
Electronystagmography, on the other hand, is an imaging technique that can be used to examine different types of nystagmus. The electrodes are placed on the forehead, under the eyes and in the nose area to record tremors. belongs to the investigation
- watch objects with your eyes,
- control of the supine balance system (eg when changing the position of the body from sitting to lying down and vice versa),
- Examination of the equilibrium system by inner ear stimulation.
The reactions to the individual components of the test make it possible to draw conclusions about the type of nystagmus.