Otoacoustic Emissions (OAE)

Otoacoustic Emissions (OAE) is a simple and non-invasive hearing test used to check the function of the inner ear, specifically the cochlea. It measures sound waves that are naturally produced by the inner ear in response to auditory stimulation. During the test, a small probe is placed inside the ear canal. This probe emits soft clicking sounds or tones and records the ear’s response. If the inner ear is functioning normally, it will produce a faint echo-like sound known as an otoacoustic emission. OAE testing is quick, painless, and does not require any active response from the patient. This makes it especially useful for newborns, infants, and individuals who cannot communicate effectively. The test helps in early detection of hearing loss by identifying problems in the outer hair cells of the cochlea. If no emissions are detected, it may indicate hearing impairment or a blockage in the ear canal. Otoacoustic Emissions testing is widely used in newborn hearing screening programs and plays a vital role in early diagnosis and timely intervention for hearing problems.