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64 FASSIVE MOVEMENTS:
Light frictions here cause a strong sensation, which is felt not
only in the eye itself, but may even be experienced inside the
skull at its anterior part.
At other places on the eye, the feeling is not so well marked.
The patient has more the sensation of having sand in the
eye.
These nerves are to be stimulated in affections of the eye, and
Fig. 40.
also in migraine and ordinary headache. In a patient who had lost
a great deal of blood, and, following on this^ sufifered from a very
severe headache, I had recourse to these vibrations on both eyes
simultaneously, since all other treatment seemed of no avail. I
was obliged to give the frictions for about fifteen minutes before
the headache ceased entirely.
Nervus Laryngeus Superior.
This nerve is easily reached where it lies below the great
cornua of the hyoid bone, and before it pierces the thyro-hyoid
membrane. The finger tip is placed at the posterior end of
the upper border of the thyroid cartilage, and quickly drawn
forward (fig. 41).
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