Which tests are commonly used to evaluate vestibular function?

The evaluation of vestibular function is primarily accomplished through specialized tests that assess the vestibular system's response to various stimuli, which is crucial in diagnosing balance disorders. Electronystagmography (ENG) and Videonystagmography (VNG) are the preferred methods for this assessment.

ENG measures eye movements by tracking changes in the electrical potential of the cornea and retina in response to head movements or caloric stimulation. It helps in assessing the function of both the peripheral and central parts of the vestibular system by evaluating the vestibulo-ocular reflex.

VNG, on the other hand, utilizes video recording to observe eye movements and nystagmus in response to similar stimuli. This method provides a visual representation of eye responses and allows for the assessment of balance and spatial orientation.

Together, these tests are key because they not only help in diagnosing vestibular disorders but also in guiding appropriate treatment interventions. The other choices provided are focused on assessing auditory function or hearing levels rather than evaluating vestibular capabilities, which is why they are not appropriate for this particular question.