Hearing Loss Conductive Hearing Loss

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Hearing Loss

Conductive Hearing Loss

A conductive hearing loss is often referred to as a temporary loss because most types can be medically corrected. A conductive loss occurs when structures of the outer or middle ears are not working properly. Some causes of a conductive hearing loss are:

Sensorineural Hearing Loss

A sensorineural hearing loss is also referred to as a permanent hearing loss because it can not be corrected by surgery or medication. A sensorineural loss results from problems in the inner ear, auditory nerve or the hearing centers of the brain. Some causes of sensorineural hearing loss are:

  • inherited conditions (family genetics)

  • ototoxic medications (medications that are harmful to the ears)

  • sudden (as with an explosion) or prolonged (as with loud music) exposure to loud sounds

  • aging

Degrees of Hearing Loss

Loudness is measured in units called decibels.

  • Normal hearing 0-20 dB.

  • Mild hearing loss 21-40 dB.

  • Moderate hearing loss 41-70 dB.

  • Severe hearing loss 71-90 dB.

  • Profound hearing loss 91 dB or worse.

See Hearing 101:Speech and Language to learn how hearing loss affects listening and learning.

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