Presbycusis
Age-related sensorineural hearing loss (cochlear hair-cell loss)
Overview
Age-related, bilateral, symmetrical SENSORINEURAL hearing loss from progressive loss of cochlear hair cells (high frequencies first). The commonest cause of hearing loss in older adults, managed with hearing aids.
Recognise
- Gradual, bilateral, symmetrical high-frequency sensorineural loss — difficulty with consonants and in background noise
- "I can hear but not understand"; often with tinnitus
- Normal otoscopy
Red flags
- ASYMMETRIC sensorineural loss or unilateral tinnitus → exclude a vestibular schwannoma (MRI) — see neurology; sudden SNHL is an emergency
Differentials & how to tell them apart
Investigations
Pure-tone audiometry (bilateral symmetrical high-frequency sensorineural loss); Rinne positive both sides, Weber central. MRI if asymmetric.
Management
Hearing aids + communication support
- 1Audiometry to confirm; refer for hearing aids and aural rehabilitation.Gate: Presbycusis is SYMMETRICAL — an ASYMMETRIC sensorineural loss or unilateral tinnitus must be imaged (MRI) to exclude a vestibular schwannoma rather than assumed to be ageing
- 2Severe/profound loss unaided → cochlear implant assessment; address modifiable factors and isolation.
Key points
Bilateral symmetrical high-frequency SNHL in an older adult = presbycusis → hearing aid. Asymmetry is the red flag that mandates MRI. Untreated hearing loss is a modifiable dementia risk factor.
Monitor & prognosis
Audiometry; hearing-aid benefit; cognitive/social impact.
Progressive but well supported by aids.
Source: NICE NG98 (hearing loss in adults); ENT UK