Hearing loss is a global health issue. Cricketer Brett Lee spreads awareness campaign on hearing loss.
- Hearing loss affects all age groups
- Half of all hearing loss cases can be avoided through primary preventive methods
- Ten million Americans suffer irreversible hearing damage from loud noise
- Listening to sound music through headsets is the main reason behind hearing loss in adolescents
Degree of Hearing Loss | Hearing Loss Range (dB) |
Mild | 25-40 dB |
Moderate | 40-70 dB |
Severe | 70-95 dB |
Profound | >95dB |
- Sensorineural hearing loss caused by the damage to the hair cells present inside the inner ear
- Conductive hearing loss when sounds are unable to pass from the outer ear to the inner ear due to ear wax or glue ear.
Hearing Loss Facts and Statistics
- Around 360 million people worldwide (328 million adults and 32 million children) suffer disabling hearing loss. Disabling hearing loss refers to hearing loss >40 dB in the better hearing ear in adults and >30dB in the better hearing ear in children
- Up to 5 in every 1000 infants are born with or develop hearing loss in early childhood
- One out of every three people over the age of 65 years are affected by hearing loss
- Causes of hearing loss can be classified into congenital and acquired
- People with hearing loss can benefit from hearing aids, cochlear implants (a medical device that replaces the function of the damaged inner ear) and other assistive devices.
References:
- http://www.who.int/mediacentre/factsheets/fs300/en/
- http://www.hearingloss.org/content/types-causes-and-treatment
- http://www.hear-it.org/Defining-hearing-loss
- http://www.hearingloss.org/content/prevention-hearing-loss