Hearing Losspowerpoint


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Hearing Losspowerpoint

  2. 2. AIMS OF THE SESSION <ul><li>1 To understand what can cause hearing loss </li></ul><ul><li>2 To describe the parts of the ear that can </li></ul><ul><li>become faulty. </li></ul><ul><li>3 To empathise and look at ways to help some </li></ul><ul><li>one with hearing loss </li></ul>
  3. 4. WHAT IS HEARING LOSS? <ul><li>Hearing loss can occur to anyone at anytime. In order to understand hearing loss, we need to understand how the ear works. </li></ul><ul><li>Sound consists of vibrations in the air. The ear is able to pick up these vibrations and convert them into electrical signals that are sent to the brain. </li></ul><ul><li>The brain then converts these signals into meaningful information such as language or music. </li></ul>
  4. 5. THE EAR <ul><li>The ear consists of three main parts – </li></ul><ul><li>Part one---- The outer ear. </li></ul><ul><ul><li>This consists of the parts that we can see outside of the body. The ear lobe (that collects the sound waves) and the ear canals inside that take the sound to the eardrum (a small membrane) </li></ul></ul>
  5. 6. THE EAR <ul><li>Part two----The middle ear </li></ul><ul><ul><li>This consists of the eardrum which vibrates and passes the sound down to the ossicles which amplifies the vibrations down further to the inner ear ( The ossicle s are made up of three bones and these are the smallest bones found in the human body.) </li></ul></ul>
  6. 7. THE EAR <ul><li>Part three---The inner ear </li></ul><ul><ul><li>This consists of a structure called the cochlea which looks like a snails shell, it is full of liquid and tiny hair cells . </li></ul></ul><ul><ul><li>The movement of these hair cells by the vibration passed down the ear generates the electrical signal which is then transmitted to the brain. </li></ul></ul>
  7. 8. THE EAR <ul><li>As can be seen there are lots of parts to do with hearing and therefore lots of parts that can go wrong. </li></ul><ul><li>This can vary from intermittent hearing loss to total hearing loss, depending on where the problem is within the ear parts. </li></ul>
  8. 9. THE EAR
  9. 10. CAUSES OF HEARING LOSS <ul><li>There are many causes of hearing loss .These can be divided into two types. </li></ul><ul><ul><li>Either problems caused by some thing interfering with the sound from the outer ear to the inner ear, or, </li></ul></ul><ul><ul><li>Some thing caused by damage to the pathway from the hair cells in the inner ear to the brain. </li></ul></ul>
  10. 11. CAUSES OF HEARING LOSS <ul><li>With reference to the first type, this could be caused by the following--- </li></ul><ul><ul><li>Middle ear infections. </li></ul></ul><ul><ul><li>Collection of fluid in the middle ear (wax) </li></ul></ul><ul><ul><li>Blockage of the middle ear (wax) </li></ul></ul>
  11. 12. CAUSES OF HEARING LOSS <ul><li>A condition where parts of the middle ear become less mobile </li></ul><ul><ul><li>Damage to the ossicles , for example by serious infection or head injury. </li></ul></ul><ul><ul><li>Perforated (pierced eardrum, which could be caused by an infection ,head injury or by poking some thing into your ear. </li></ul></ul>
  12. 13. CAUSES OF HEARING LOSS <ul><li>With reference to the second type, this could be caused by--- </li></ul><ul><ul><li>Age related hearing loss caused by natural decline of hearing and the loss of hair cells </li></ul></ul><ul><ul><li>Injury caused by loud noise (this can damage the hair cells) </li></ul></ul><ul><ul><li>Certain infections such as mumps or meningitis can lead to a loss of the hair cells. </li></ul></ul>
  13. 14. CAUSES OF HEARING LOSS <ul><li>Menieres disease, which can cause dizziness, tinnitus, and hearing loss. </li></ul><ul><li>Certain drugs such as antibiotics can cause hearing loss, for example Aspirin can cause ringing in the ears </li></ul><ul><li>Tumours (none cancerous) affecting the nerve sending the information to the brain. </li></ul><ul><li>Other conditions such as strokes, brain tumours and learning difficulties. </li></ul>
  14. 15. PROBLEMS <ul><li>Hearing like sight is some thing that we take for granted </li></ul><ul><ul><li>(In groups choose one of you to have ear plugs in and for 15 minutes talk amongst yourselves, then let the person who wore the ear plugs feed back to the group how they felt during the exercise.) </li></ul></ul>
  15. 16. PROBLEMS TWO <ul><li>(In groups look at ways of helping some one with hearing loss either partly or total </li></ul>
  16. 18. FACTS <ul><li>If a pregnant woman gets a condition called Rubella , then the unborn baby is at risk of being born with some form of deafness, Vaccination is therefore important. </li></ul><ul><li>Around 840 children are born with moderate or severe deafness each year in the UK </li></ul><ul><li>Around 1 in 1000 children are deaf at the age of three </li></ul>
  17. 19. FACTS <ul><li>There are about nine million people in the UK who are deaf or have hearing difficulties. </li></ul><ul><li>Over half of all people aged over 60 are hard of hearing or deaf. </li></ul><ul><li>There are about 123,000 people over the age of 16 who were born hearing but have developed severe or profound deafness. </li></ul>
  18. 20. THANK YOU <ul><li>C Spain 2007 </li></ul><ul><li>Thanks to BUPA for help </li></ul>