DEFINITION
DEFINITION
Hearing loss: Impairment of hearing function
Types: Temporary, permanent, acute, progressive, conductive, sensorineural
PREVALENCE
Most common in older age (presbycusis)
ETIOLOGY
- Presbycusis
- Noise-induced
- Acoustic neuroma (vestibular schwannoma)
- Meniere’s disease
- Viral labyrinthitis
- Ototoxicity (aminoglycoside)
- Head and neck tumour