Head tilt and nystagmus

15 Head tilt and nystagmus


The vestibular system is responsible for balance and coordinating movements of the eyes, trunk and limbs with changes in head position. Head tilt and nystagmus are typically associated with unilateral vestibular disease and are relatively common presenting signs in canine emergency patients. Jerk nystagmus is typical of vestibular disease with the slow (pathological) phase towards the side of the lesion and the fast (corrective) phase away from the side of the lesion. Occasionally animals present with nystagmus due to cerebellar disease (paradoxical vestibular disease) or abnormalities in visual pathways. Other clinical signs associated with vestibular disease are listed in Box 15.1.




Types of Unilateral Vestibular Disease


Vestibular disease may be the result of a lesion affecting either the central or the peripheral component of the vestibular system.




Sep 3, 2016 | Posted by in SMALL ANIMAL | Comments Off on Head tilt and nystagmus
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