 |  Video-infrared-nystagmography (VIN) -- Television cameras track eye
movements in the dark to see if you do or don't have normal response to changes in position, changes in inner ear
fluid density, and pursuit of visual images and spinning. |
| Transtympanic Electrocochleography (tt-EcoG) -- A sensitive measure of
inner ear electrical activity, changes in which can suggest to the examiner that there is
too much pressure or that there is a leak of fluid (hydrops / perilymph fistula). |
|  Analysis of Balance Index (CBI) -- Measures a person's total balance
system function. A person's stability is measured when their eyes are either open or
closed or the ground on which they stand is stable or moving. Similarly, their ability to
see clearly is measured when they see the same target both when they stand on a stable
surface with their head fixed and when there is head motion and the ground on which they
stand moves. |
| Fistula Electroacoustic Impedance (FEI) -- The pressure in the ear canal is
varied with a person standing on an unstable surface while the examiner searches for
abnormal eye motion and sway. |
| Brainstem Auditory Evoked Response Analysis (BAER) -- A person hears
sounds at different rates, and the examiner analyzes the brainstem electrical discharges
that accompany the sounds to identify if the brainstem passes these signals too slowly or
in too disorganized a manner. |
| Complete Audiological Evaluation -- You may not hear
sounds or understand them, or you may have difficulty hearing in a noisy
environment.
Tests are done to see how your inner ear functions, how the circuits between
your inner ear and your brain work and how your brain processes "messages".
Abnormalities in one or more of these areas may help your physician understand why you are
having the balance and / or hearing problem that bothers you. |
