Introduction
Hearing impairment, or deafness, is when your hearing is affected by a disease, disorde ... » Read on
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Why it is necessary
... Some types of hearing impairment are permanent. These include deafness caused by damage to the nerves or brain caused by an il ... » Read on
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Introduction
... ing, and many will have a combination of the two, such as total deafness, plus some loss of vision. Types of deafblindness I ... » Read on
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