Audiovestibular Tests

At Harley Street Audiovestibular Clinic, we pride ourselves in offering the highest quality in diagnostic testing to aid your consultant in coming to the correct diagnosis. We are also CQC regulated ensuring compliance to the highest standards.

Audiovestibular tests are non-invasive physiological tests meaning they can be performed in the outpatient clinic. No specific preparations are required. They are safe and well-tolerated & you can carry on with your normal activities afterwards.


Accurate testing & interpretation is crucial for correct diagnosis. At Harley Street Audiovestibular Clinic we only have Band 7 or higher highly specialised audiologists with many years of experience, to deliver our diagnostic services.

We accept referrals from all consultants. Make sure you specifically request Harley Street Audiovestibular if you have been recommended tests by your specialist.


Pure tone Audiometry (PTA)

A detailed hearing assessment composed of responding to sounds which are presented both via the ear canal and through the bone. It may also involve masking of sounds in one ear to test the other one better.


It will help to determine whether you have a conductive or sensorineural hearing loss which can hugely change the types of investigation required and the eventual management.


Tympanometry & Reflexes

A quick and painless pressure & sound test which measures how well your ear drum is moving and the pressure in your middle ear.


It also gives an indication of how well the muscles in the middle ear are functioning and how the sounds get transmitted up into the auditory nerve.

Vestibular Specialist

Video nystagmography (VNG)

Your eyes are the window to your vestibular disorder. Accurate interpretation of nystagmus is crucial in diagnosis.

VNG helps to record your eyes and eye movement in close detail. In the dark, features of nystagmus are accentuated and can be accurately measured.

Vertigo Specialist

Otoacoustic Emissions (OAE)

A healthy inner ear hearing organ known as the cochlea is constantly producing sounds. This can be measured and its health assessed by stimulating the cochlea and listening to the response.


Otoacoustics Emission (OAE) test is a quick, painless and efficent test which takes only a few minutes. Your ear will be stimulated by gentle sounds whilst measuring the response.

Dizziness Clinic

Caloric Test

Irrigation of the ear with warm and cool air or water will ellicit a sensation of dizziness/vertigo & provoke eye movements known as nystagmus.

Accurate measurement of the nystagmus by our vestibular scientists help to ascertain if the inner ear balance organs are malfunctioning.

Vestibular specialist

Video Head Impulse Test (vHIT)

The inner ear vestibular organs are connected to the eyes and help to stabilise them.

Quick head thrusts to either side and recording of the eye reflex response can help to pick up any subtle changes which indicate a vestibular disorder.