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Cochlear Implants

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by

Kristine Pfenning-Wendt

on 22 June 2011

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Transcript of Cochlear Implants

Audiology and Hearing Loss What is Audiology? The prevention of and assesment of auditory, vestibular, and related impairments as well as the habilitation/rehabilitation and maintenance of persons with these impairments. The anatomy of the ear Types of Hearing Loss Conductive Mixed Sensorineaural Examples: Ear infection, impacted earwax, fluid in the middle ear from colds, etc. This can be fixed will medicine, surgery, and other procedures Examples: Damage at birth, head trauma, tumors, etc. This type of hearing loss can Not be fixed This occurs when both Conductive and Sensorineural hearing loss happens. Example a person who was born hard of hearing and gets and ear infection will experience mixed hearing loss. Degre 0dB-20dB Normal Hearing

21dB-40dB Mild Difficulty with distant or faint speech

41dB-55dB Moderate Difficulty following conversational speech

56dB-70dB Moderately Severe Can hear only loud speech

71dB-90dB Severe Difficulty understanding even loud speech
and may require alternative communication system

91dB+ Profound Usually considered "deaf"; cannot depends on
auditory system alone to obtain information. Degree of Hearing Loss Ampilification Hearing Aids Cochlear Implants FM system Tele-typewriter (TTY) Sound Field Amplification Audiological Assesment Procedures By: Andrew Keck & Kristine Pfenning-Wendt What is Hearing Loss Hearing Loss is the result of the inability to efficiently use and interpret auditory information.

Most common cause: otitis media The End
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