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Hearing loss
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  • 1. Hearing LossWhat you need to know
  • 2. What is hearing loss? One of most common conditions of older adults (30% up to 74 years, 47% 75+ years) Can be mild (only missing high pitched sounds) to total loss of hearing Hereditary or disease Two categories:  Sensorineural (damage to inner ear, permanent)  Conductive (sound waves can’t reach inner ear, might be treatable) http://nihseniorhealth.gov/hearingloss/hearinglossde fined/01.html
  • 3. Hearing loss
  • 4. Visual guide: Hearing losshttp://e-infopages.com/2012/turn-down-the-volume-to-avoid-hearing-loss/
  • 5. Presbycusis • Comes on gradually as we age • Can occur because of changes in ear • Causes: aging, loud noise, heredity, head injury, infection, illness, drugs, circulation • May make it hard to tolerate loud sounds or hear what others are saying
  • 6. Tinnitus • Common symptom of hearing loss • Characterized by ringing, hissing or roaring in ears • Can be caused by exposure to loud noise or medicines • Symptom, not a disease • Can also be sign of other important health problems like allergies & problems in heart & blood vessels
  • 7. Causes & prevention Aging not only cause Also ear infection, medicines such as antibiotics or even aspirin Hereditary Loud noise (avoid loud noise from lawnmowers, snowblowers, motorcycles, firecrackers and loud music) Remove excess ear wax Avoid illness which can cause infection
  • 8. Should I test my hearing? Problem hearing on the phone? Trouble hearing when there is background noise? Hard to talk with more than 2 at a time? Strain to understand? Misunderstand speech? Often ask to repeat? Trouble understanding women and children speech? Do you listen to TV too high? Hear ringing, roaring, hissing? Are some sounds too loud?
  • 9. Treatment & research Hearing aids: 25 – 29% 70 years and older wear them Many shapes, sizes Analog or digital Analog may be adjusted with computer for different environments Digital use computer chip and most flexible. Also most expensive Other options: TV listening systems, hearing aids that plug into TVs, stereos, microphones Telecoil small magnetic coil that allows users to receive sound through hearing aid rather than microphone. Can also work with sound systems in large gatherings like churches, schools, airports
  • 10.  Small electronic deviceOther treatments: placed under skin & behind earCochlear Implants  Picks up sounds, changes to electrical signals, sends to non-working part of inner ear and brain.  Doesn’t restore or create normal hearing, but helps people become aware of surroundings & understand speech  Does require training on how to interpret sounds
  • 11. How cochlear implants work:  External microphone & speech processor  Worn behind ear  Transmitter sends radiofrequency signals to surgically implanted electronic chip (receiver – stimulator) which stimulates auditory nerve with electrodes threaded through cochleahttp://www.mayoclinic.com/health/medical/IM03853
  • 12. More about hearing aids