OAE (Oto acoustic emission)

The unique window provided by otoacoustic emissions (OAEs) is invaluable in audiology for assessing inner ear health. These emissions, sounds generated by the cochlea in response to stimuli, are an effective and non-invasive method of assessing hearing function in newborns and infants who can’t participate in standard hearing tests. OAEs are important because they can detect hearing issues at an early stage, aiding in the prompt identification of hearing loss or auditory system abnormalities. By capturing the cochlea’s response to sound stimuli, OAE testing helps clinicians differentiate between types of hearing loss and determine personalised intervention strategies.

This test is done to evaluate the outer hair cell (OHC) functioning in the cochlea. This is one of the basic hearing screening measures for newborn hearing screening. This test can be done easily, is less time-consuming, and is a cost-effective method of hearing screening especially for newborns/children. A small microphone is kept in the ear canal, and a stimulus such as a click sound is generated. Which stimulates the cochlear structures and the reflection of this activity is recorded. This testing is advised to be done in a less noisy environment for accuracy. During the newborn hearing screening, sometimes the result may be affected by the body movement or fluid in the canal of the babies. In such conditions, revaluation of OAE is recommended after a certain time period.

Additionally, OAEs serve as a crucial tool for monitoring hearing health post-treatment, allowing audiologists to track changes and assess the effectiveness of interventions like hearing aids or cochlear implants. They have a role that goes beyond diagnosing. In the end, these emissions are a valuable complement to traditional audiometry, aiding in comprehensive assessments and early intervention, and making a significant impact on auditory health preservation across diverse populations.

When is an OAE Test Recommended?

The Otoacoustic Emission test is a way to see how well the inner ear, which is also called the cochlea, is doing its job. Doctors like to use the Otoacoustic Emission test when they are checking the hearing of babies to make sure they can hear okay. They also use the Otoacoustic Emission test on kids who are having a time speaking and on adults who are having trouble hearing things.

The Otoacoustic Emission test is very quick. It does not hurt at all. The Otoacoustic Emission test helps the people who check hearing these people are called audiologists. They often work at a hearing care clinic. The audiologists use the Otoacoustic Emission test to find out if someone is losing their hearing and to keep track of the health of the cochlea.

The Otoacoustic Emission test is really good for checking the hearing of babies for checking how well the cochlea is working and for making sure the inner ear is working the way it should be. The Otoacoustic Emission test is very helpful, for all these things.