1 / 11

Deafness

Deafness. Hearing Loss. Part of ear not working Includes: outer ear middle ear inner ear hearing acoustic nerve auditory system . Causes. Heredity Diseases Ear infections Otosclerosis Meningitis Injuries Punctured eardrum Nerve damage Loud noises. Preventions .

melosa
Download Presentation

Deafness

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Deafness

  2. Hearing Loss • Part of ear not working • Includes: • outer ear • middle ear • inner ear • hearing acoustic nerve • auditory system

  3. Causes • Heredity • Diseases • Ear infections • Otosclerosis • Meningitis • Injuries • Punctured eardrum • Nerve damage • Loud noises

  4. Preventions • Immunizations for childhood diseases • Avoid high decibels • Have hearing tested • Use hearing protectors • Earmuffs • Earplugs

  5. Decibels • Decibel Level Examples include: • Rock concerts, firecrackers (140 decibels) • Loud bass in cars, snowmobiles (120 decibels) • Chainsaw (110 decibels) • Wood shop (100 decibels) • Lawn mowers, motorcycles (90 decibels) • City traffic noise (80 decibels) • Normal conversation (60 decibels) • Refrigerator humming (40 decibels) To reduce potential hearing loss, avoid prolonged exposure to sound above 90 decibels.

  6. Quantification of Hearing Loss • Unable to hear sound at • “Mild” Hearing Loss • 26 – 40 dB • “Moderate” Hearing Loss • 41-55 dB • “Severe” Hearing Loss • 56- 70 dB • “Profound” Hearing Loss • 91 dB & greater

  7. Treatment • Removal of ear wax • Hearing aids • amplify sound • Cochlear Implant • Sign Language • Lip reading

  8. Assistant devices • FM System • Captioning • Text messaging • Telephone amplifiers • Flashing & vibrating alarms • Audio loop systems • Infrared listening devices • Portable sound amplifiers • TTY (Text Telephone or teletypewriter)

  9. Cochlear Implant • Small electronic device • Simulates auditory nerve • Provides “sense” of sound • Used by • Profoundly deaf • Children age 2-6 • Aided by speech therapy

  10. Sign Language • Visually transmitted sign pattern • Hand shapes • Orientation • Movement of hands, arms, body • Facial expressions • ASL (American Sign Language) • Not English • Manual alphabets (finger spelling) • Grammar not connected to English

  11. Sources • CDC (Center for Disease Control) • http://www.cdc.gov/ncbddd/hearingloss/ • Signing Savvy • http://www.signingsavvy.com/

More Related