Audio Traveler AA222, Инструкции по эксплуатации

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AA222 Operation Manual Page 19
Primarily, a reflex test shall answer these questions:

Is the reflex absent or present?

If present, is it present both contralateral and ipsilateral?

What is the threshold of the reflex?
If the test shows normal reflex thresholds and a normal
tympanogram is present, the middle ear will usually be classified
as healthy. One exception, though, is the early stage of
otosclerosis.
Non Acoustic Stimulation:
The Tensor Tympany muscle of the middle ear can produce a
reflex elicited by a non acoustic stimulus or by an acoustic
stimulation loud enough to have a startling effect on the patient.
As the tensor reflex is a startle response, it will decrease and
disappear after a few equal stimulations. Even though the
tensor reflex is regarded late and unstable compared to the
Stapedius reflex, it may be useful in testing deaf or hard of
hearing patients. Below is shown the tactile sensitive area of the
face to be stimulated with e.g. a piece of wool. Stimulation may
also be a blow of air into the eye region of the patient.
Figure 3:
Air
Touch