Hearing loss
Hearing Loss
Hearing loss (/ˈhɪərɪŋ lɒs/), also known as hearing impairment, is a partial or total inability to hear.
Etymology
The term "hearing loss" is derived from the Old English "hieran" (to hear) and "los" (loss).
Definition
Hearing loss is a common condition that affects many people, especially as they age. It can occur in one or both ears and ranges from mild to severe. In some cases, hearing loss can be so severe that it is classified as deafness.
Types of Hearing Loss
There are three main types of hearing loss: conductive hearing loss, sensorineural hearing loss, and mixed hearing loss.
- Conductive hearing loss occurs when sound is not conducted efficiently through the outer ear canal to the eardrum and the tiny bones, or ossicles, of the middle ear.
- Sensorineural hearing loss occurs when there is damage to the inner ear (cochlea) or to the nerve pathways from the inner ear to the brain.
- Mixed hearing loss is a combination of conductive and sensorineural hearing loss.
Causes
Hearing loss can be caused by a number of factors, including age, noise exposure, genetics, birth complications, infections, drugs, and trauma to the ear.
Treatment
Treatment for hearing loss depends on the cause and severity of the condition. Options may include hearing aids, cochlear implants, assistive listening devices, and speech reading.
Related Terms
- Audiology: The study of hearing disorders, including evaluation of hearing function and rehabilitation of patients with hearing impairments.
- Tinnitus: A ringing, buzzing, or other type of noise that seems to originate in the ear or head.
- Otitis Media: An infection or inflammation of the middle ear.
External links
- Medical encyclopedia article on Hearing loss
- Wikipedia's article - Hearing loss
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