Eye Movement Vestibular Reflex

Vestibular reflex eye movement (D.g.v.r.) is an involuntary movement of the eyes in the direction opposite to the tilt of the head (to the left if the head is tilted to the right, and vice versa), caused by irritation of the receptors of the semicircular canals of the inner ear and the vestibular nuclei of the brain stem. Normal D. g.v. R. occur when the head is tilted in both directions, but are much more pronounced when tilted to one side. In this case, the eyeballs deviate towards the tilt of the head. D. g. v. The movements that occur when the head is tilted to the sides are called horizontal, and when the head is tilted forward or backward - vertical.

With damage to the brain stem D. g.v. R. may disappear or be significantly weakened, which is used for topical diagnosis of brain stem lesions (for example, with tumors, hemorrhages, multiple sclerosis).

Vestibular-reflex eye movement

Eye movement of the vestibular-reflex function is an involuntary movement of the eyes directed away from the stimulus, which is associated with the receptor apparatus of the inner ear. This phenomenon was discovered in 1862 by the French physician A. Baran and the German E. Gitzig, in whose honor it received its name. The discovery was based on the function of the vestibular apparatus, which is responsible for a person’s balance in space and controls eye movements.

The process of eye movement

In the inner