In the vestibular system, there are three canals that are semicircular in shape that input sensory clues. These canals allow the brain to sense rotational motion and linear motion changes. The brain then uses the sensory input clues and the visual input clues from the vestibular system to retain balance. The vestibulo–ocular reflex retains continuous visual focus during motion which is also the vestibular systems job during activity.
Labyrinthitis
Benign paroxysmal positional vertigo
Labyrinthine fistula
Orbital apex syndrome
Vestibular adenitis
Cavernous sinus thrombosis
Orbital cellulitis
Mastoiditis