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Noise Levels in the surroundings Bird Chirp - 10-15 dB The humming of a refrigerator - 40-45 decibels Normal conversation 50- 60 decibels Noise from heavy city traffic - 80-85 decibels Motorcycles - 95 decibels An MP3 player at maximum volume - 105 decibels Sirens - 120 decibels Firecrackers and firearms - 150 decibels As defined by NOHSC: 2009(2004), occupational noise-induced hearing loss (NIHL) means hearing impairment arising from exposure to excessive noise at work. Occupational noise-induced hearing loss is also commonly known as industrial deafness.
Ototoxicity (oto-means ear and toxic means side effect) Ototoxicity means certain drugs used to treat certain medical conditions in the body has a side effect on hearing or balancing organ situated in the inner ear. The effects of ototoxicity can be reversible and temporary, or irreversible and permanent. Hearing loss caused by this kind of medication tends to develop quickly. The first symptoms usually are ringing in the ears (tinnitus) and vertigo. Hearing usually returns to normal after you stop taking the medicine. But some medicines can cause permanent damage to the inner ear. Early intervention plays a key role in improving speech understanding. hearing loss will be treated either by bilateral Digital Hearing Aid fitting or cochlear implants. Hearing aid benefit depends on the site of damage in the inner ear or nerve.
Some causes of hearing loss in adults are: Otosclerosis Ménière's disease Autoimmune inner ear diseases Ototoxicity Noise Induced Hearing loss Acoustic neuroma Trauma to head or ear old age deafness acute supportive otitis media chronic supportive otitis hearing management options are Medication, surgery and/ hearing devices. your ent expert and audiologist will help you for better treatment.
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