Paediatric Hearing Tests
The test is performed using play audiometry where the child will place a peg into a board after hearing a test tone through headphones. The test usually takes about 10-15 minutes and breaks in the testing procedure are taken if necessary.
Visual Reinforcement Audiometry (VRA)
Very young children who are unable to perform a co-operative play audiometry task can be assessed at a specialised facility using visual reinforcement audiometry such as illuminated puppets. Children who are old enough to be able to sit unaided and have head control are very responsive to this type of test methodology.
Otoacoustic Emissions (OAEs)
Otoacoustic Emmissions measure the health of the outer hair cells in the cochlea. As the outer hair cells are electromechanical amplifiers their health is essential for normal hearing. Consequently the measurement of their performance is an indirect measure of hearing ability. The measurement instrument measures the acoustical fingerprint of the outer hair cells contraction and expansion with a sensitive microphone in the ear canal. This test is used extensively in newborn hearing screening programs globally to objectively obtain quick and reliable hearing results without the need for a cooperative response from the patient. It is very useful to determine damage to hearing that may arise from noise exposures, ototoxic antibiotic and chemotherapy treatments. Further, the test is highly valuable as an adjunct to play or sound field assessments (aka Visual Reinforcement Audiometry) and when the patient is unable to participate cooperatively due to age, willingness or cognitive issues.GET IN TOUCH