1. Hearing Impairment -
Causes and communication
Girija. A
2nd Semester
B.Ed., ASE 1

2. CAUSES FOR HEARING IMPAIRMENT
“ HEARING IMPIRMENT is not only the handicap of not
being able to hear. It encompasses emotional problems,
problems of socialization , and even in hearing”
“ HEARING IMPIRMENT is not only the handicap of not
being able to hear. It encompasses emotional problems,
problems of socialization , and even in hearing”
According to Helen Killer
According to Helen Killer
“The problems of deafness are deeper and more
complex. It is a much worse misfortune for it means
the loss of the most vital stimulus, the sound or voice
that brings language, sets thoughts and keeps us in the
company of man.”
“The problems of deafness are deeper and more
complex. It is a much worse misfortune for it means
the loss of the most vital stimulus, the sound or voice
that brings language, sets thoughts and keeps us in the
company of man.”
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3. DEGREES OF DEAFNESS
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4. FREQUENCY Vs DECIBLES
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5. CLASSIFICATION OF HEARING IMPAIRED
1. According to the age at onset of deafness
- congenitally deaf- born deaf
- Adventitiously deaf- Born with normal hearing
and became deaf later
2. According to language development
- prelingually deaf- born deaf or lost speech before
speech develops
- Post lingually deaf- Lst speech after deve;p[ment
of speech and language
3 According to the place of impairment
- Conductive hearing loss-It is due to the interference in the
transmission of sound to and through the sense organ(outer or middle
ear)
-Sensironeural hearing loss- Due to the abnormality of the inner year
Mixed hearing loss- Combination of both
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7. Parts of an Ear
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9. MATERNAL FACTORS
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10. Drugs during pregnancy
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11. NATAL CAUSES
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14. Conductive hearing loss- causes
ACOUSTIC NEUROMA- a non cancerous tumour in the
outer ear
causes vertigo, tinnitus etc
OTOSCLEROSIS- Building up of a spongy bone like tissue in
the middle ear
OTITIS MEDIA- Inflammation of the middle ear
it is due to bacterial or viral infections
primarily occurs in the child hood
CERUMEN- It is block in the ear canal and adhers to the
eardrum(ear wax)
Perforation to the ear drum
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15. PROBLEMS OF INNER EAR
• MENIERE’s disease
A part of cochlea swells, results in lack of balance
• MENINGITIS- inflammation of the layers of the
brain
• HEREDITY
• PRE-NATAL INFECTIONS OF MOTHER
• VIRAL AND BACTERIAL INFECITONS
• DRUGS
• UNWANTED NOISES
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AAmmeerriiccaann SSiiggnn llaanngguuaaggee ((AASSLL))

19. ALPHABET
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20. NUMBERS
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21. 1. GREETINGS
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23. 3. Hand Shape
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25. 5. Vocabulary
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31. Thank you
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