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Services A-Z

HEARING TESTING

Audiometry

The standard hearing test. Seated in a sound treated room, the patient is asked to respond when a tone or sound is heard. The sensitivity to many different tones is mapped out for each ear.

Speech testing is also performed, requiring the patient to repeat words that are played into each ear. Standard and/or extra high frequency tones may be used. 

Tympanometry

A test of eardrum mobility. A special machine applies a small amount of pressure to the ear canal and measures how well the eardrum moves in response.

Acoustic Reflex Testing

A test of middle and inner ear function. A special machine presents sounds into the ear via an earphone and measures the muscle reflex that occurs in response.

Otoacoustic Emissions (OAE)

A test of the inner ear hearing organ. A special machine presents tones into the ear canal and records responses which provide health status of the inner ear.

Auditory Brainstem Response (ABR)

ABR testing measures the response of the hearing and balance nerve. During the testing the patient listens to sounds while the electrical activity of the nerve is recorded via small sticker electrodes. The patient lays flat or reclined in a chair during the test. Information about the health status of the nerve is obtained by analyzing the waves created by the continuous electrical activity. 

VESTIBULAR (BALANCE) TESTING

Videonystagmography (VNG)

VNG consists of a battery of tests that evaluate central and peripheral parts of the balance system. There are three main sections of testing. The first section of the test requires the patient to follow a light lights as it moves across a screen. The second section of the test has the patient laying down with their head turned to each side. In the final section of testing cool or warm air is delivered into the ear canal. Temporary  dizziness may be experienced in this final section.

Vestibular Evoked Myogenic Potential (VEMP) testing

VEMP testing measures the response of one of the balance organs to sound. Sounds are played into the patient's ear while small sticker electrodes record electrical activity from the neck or eye muscles. Information about the health status of these balance organs are obtained by analyzing the waves created by the continuous electrical activity.

Rotational Chair

A test of balance function measuring the response of the inner ear balance canals. A special motorized chair rotates the patient leftward or rightward at controlled speeds while cameras track the movement of the eyes. The chair rotation stimulates the balance canals and the accuracy of their response to the rotation is measured.

Video Head Impulse Testing (vHIT)

A test of the inner ear balance organs. The patient wears small goggles which record the eye and head movements. The head is moved to the sides or diagonally in short motions to stimulate the balance canals and measure their function.