Deafness and Hard of Hearing Disabilities
The two main types of hearing loss are sensori-neural (nerve deafness which involves
impairment of the auditory nerve) and conductive deafness (usually a dysfunction of a part
of the ear mechanism). Hearing loss is measured by decibels, and according to the decibel
count the loss may be mild, moderate or profound.
More individuals in the United States have a hearing impairment than any other physical
disability. The 21 million people in the United States who have this disability differ
considerably. A person may be born with a hearing loss or may become hard of hearing because
of an accident or illness.
If the age of onset occurs before the acquisition of language and the development of speech,
the individual may have language-based deficiencies such as poor syntax and vocabulary, and
difficulty understanding abstract concepts.
Communicating with Deaf and Hard of Hearing Students