[Possibilities for quantifying vestibular vertigo].

The problem of the quantification of vertigo is still unsolved. In this article, two methods in the field of visual orientation in which the vestibular system is involved, are proposed. The visual subjective vertical allows to determine the degree of deviations, which is augmented in acute vestibular lesions. - The degree of deviation correlates well with the subjective intensity of vertigo. Both methods seem to be useful in the quantification of subjective vestibular complaints.