Hearing loss is a partial or complete reduction in the ability to hear sound in one or both ears. It can result from problems in the outer, middle or inner ear, or along the auditory nerve pathway to the brain. Approximately one in six Australians experience some degree of hearing loss, making it one of the most common health conditions in the country.
Occurs when sound cannot pass efficiently through the outer ear canal, eardrum or middle ear bones. Causes include ear wax impaction, middle ear fluid (glue ear), ear infections, perforated eardrum, otosclerosis and cholesteatoma. Conductive hearing loss is often treatable with medical or surgical intervention.
Results from damage to the delicate hair cells in the cochlea (inner ear) or the auditory nerve. Common causes include ageing (presbycusis), noise exposure, genetic factors, viral infections, Meniere's disease and ototoxic medications. Sensorineural hearing loss is usually permanent but can be effectively managed with hearing aids or cochlear implants.
A combination of conductive and sensorineural components, where both the sound transmission mechanism and the inner ear or nerve are affected. Treatment addresses both components.
Hearing loss often develops gradually, and many people are unaware of its progression. Warning signs include:
Sudden hearing loss, a rapid decline in hearing over hours to days, usually in one ear, is a medical emergency. If you experience sudden hearing loss, seek urgent ENT assessment within 48 to 72 hours, as early treatment with corticosteroids significantly improves outcomes.
At Central Sydney ENT, hearing loss is assessed through a combination of:
Otoscopy: Visual examination of the ear canal and eardrum to identify wax, infections, perforations or middle ear abnormalities.
Audiometry (hearing test): A comprehensive audiogram measures hearing across different frequencies and volumes, identifying the type, degree and pattern of hearing loss. This is the gold standard diagnostic test.
Tympanometry: Measures the movement of the eardrum and middle ear pressure, helping diagnose conditions such as glue ear, eustachian tube dysfunction and ossicular chain problems.
Imaging: CT or MRI scanning may be required for specific conditions such as cholesteatoma, acoustic neuroma, or when surgical planning is needed.
Our specialist otologist Dr Philip Yeung leads complex ear and hearing assessments at Central Sydney ENT.
Treatment of underlying conditions such as ear infections, wax removal, or corticosteroid therapy for sudden sensorineural hearing loss.
Modern hearing aids are small, discreet and highly effective for most types of sensorineural hearing loss. Our audiology team can guide you through hearing aid selection, fitting and ongoing adjustment.
Surgical options for conductive hearing loss include:
For severe to profound sensorineural hearing loss where hearing aids are no longer effective, cochlear implantation provides direct electrical stimulation to the auditory nerve, restoring access to sound and speech understanding.
Ask your GP for a referral to Central Sydney ENT, or call our reception team directly.
Call (02) 9747 3199