Hearing loss is very common problem. There are 3 types of hearing disorder : conductive hearing disorder, sensorineural hearing disorder, and mixed hearing disorder which are presented here by Hearing Aids Discounted. Get details at www.hearingaidsdiscounted.com

1. Types of Hearing Loss

2. Conductive Hearing Loss

3. Happens when sound wave can't reach internal ear

4. Something stops sound getting into ear

5. Affected outer or middle Ear

6. Outer Ear - Causes
A. Blocked ear canal
– Wax & Infection
B. Scarred eardrum
– Often caused by glue ear
C. Perforated eardrum

7. Middle Ear - Causes
• Broken Ossicles - Hammer, anvil, stirrup
• Glue ear - Infection with build up of sticky fluid
which prevents Ossicles from vibrating properly

8. Middle Ear - Causes
Eustachian tube not opening
and closing properly
– Cold or catarrh
– Allergic reaction

9. Sensori-neural Hearing Loss
Affected inner ear auditory nerve
80% of people with a hearing loss have SNHL

10. Occurseither thehair cellsin thecochlea
or thenerveto thebrain aredamaged
Sound isnot been passed onto the
auditory centrein thebrain
Very rarethat theexact causecan be
identified

11. TheInner Ear
Cochlea
Auditory nerve

12. Inner Ear - Causes
• Commonest cause – old age
deafness (presbyacusis)
• Noise damage
• Chemotherapy / radiotherapy –
sometimes
• Virus or infection
• High doses of some medications

13. Inner Ear - Causes
• Acoustic neuroma
• Autoimmune Inner Ear Disease
• Accident – head injury
• Congenital
• Meniere’s Disease

14. Central Auditory Processing Disorder (CAPD)
Caused by adifficulty in thehearing part of the Brain

15. A sort of hearing dyslexia
Can behelped by lipreading
asability to processwordsis
not affected
Occurswhen sound reachesbrain but thereisa
difficulty in identifying sound patterns

16. Central Auditory Processing Disorder (CAPD)
Caused by adifficulty in thehearing part of the Brain

17. Presented
by
Website : www.hearingaidsdiscounted.com
Email : williamsaccone@aol.com
Phone : 781-648-7433
Address: 94 Pleasant Street,
Arlington, Mass. 02476