An audiometry evaluation is a painless, noninvasive hearing test that measures a person's ability to hear different sounds, pitches, or frequencies. Patients who have a tumor in or around the ear may undergo audiometry testing to determine whether hearing loss has occurred or to monitor their hearing before and after surgery. It is also used to evaluate whether hearing aids or surgery may improve one's hearing.
The audiometric test can be carried out using automatic or manual audiometers, but the essential test procedure is the same:
Pure tone audiometry charts the hearing level of different tone frequencies in both ears. On an audiogram chart, red O's indicate the right ear's results and blue X's the left ear's results.