People with hearing impairments
People with hearing disabilities are those who:
Some other conditions which can give rise to a hearing disability include:
These other conditions can result in significant additional handicaps to a hearing handicap. Because hearing impairment varies so greatly, it is not possible to generalise about interacting with people with significant hearing impairment and it is not possible to make general statements about interaction with people experiencing other hearing related conditions. The degree and type of hearing impairment will vary considerably depending on the cause of the hearing disability. A hearing impaired person's ability to hear and understand sound or recorded information will depend on the degree and extent of their hearing disability.
Facts about hearing impairment
D E S C R I P T I O N
Following the World Health Organisation typology of impairment, disability and handicap, impairment can be understood as follows:
Hearing impairment ranges from mild to moderate to severe to profound. A person with a mild hearing impairment may not even be aware of their inability to hear certain sounds. A moderate hearing impairment may cause some difficulty in hearing, for example in background noise, but not in every situation. Many people with mild to moderate hearing impairment deny that their communication problems are caused by their hearing disability and instead, tend to blame others, for example, "people are always mumbling".
A person with a severe hearing impairment will have considerable difficulty in following speech and in hearing other environmental sounds. However, their own speech may not be affected by their hearing disability. Profound hearing impairment implies that the person's range of hearing is extremely limited. They may only hear low toned sounds at a much higher than normal volume or decibel level but are not able to hear enough to follow speech and will not hear most environmental sounds such as a telephone or smoke detector. They may use sign language or have difficulty monitoring the volume and pitch of their own voice when speaking.
Hearing impairments can be hereditary or caused by a variety of factors including viruses, diseases of the ear, exposure to noise, toxins and natural ageing.
There is no such term as "legally deaf". A person's level of hearing disability will depend on their degree of hearing impairment as well as the age at which it occurred and other factors which influence communication.
Profoundly pre-lingually deaf people are those who were born with insufficient hearing to enable them to acquire speech normally, or who lost their hearing prior to the age at which speech is acquired. They are not orientated to a world of sound and may not ever acquire speech although they are not necessarily unable to speak or "mute".
Some profoundly pre-lingually deaf people do use speech to communicate and have been taught to speak at a young age. If their preferred mode of communication is verbal they may be termed Oral Deaf. They rely on lip-reading and may or may not use sign language. People who are profoundly deaf and who use sign language as their preferred mode of communication may identify strongly with the Deaf community. They have a strong sense of culture and community and within that community function at a high level as there is no language barrier. They are visually orientated and may have difficulty coping with spoken communication in what they term the "hearing world". While accepting that they are different, they may not necessarily agree with being labelled disabled. Deaf people may request the services of an Auslan interpreter.
People who become profoundly deaf after they have acquired speech are termed profoundly post-lingually hearing impaired. Usually they will not identify with the Deaf community or use sign language. Their own speech may not be affected by their loss of hearing although they may have difficulty with voice modulation. They will rely on visual spoken language to communicate and may become highly proficient lip-readers although individual ability will vary considerably from person to person. They may request information in written form and/or request the services of oral deaf interpreters.
In the majority of cases, people who acquire a hearing impairment retain some residual hearing and continue to communicate in spoken language. Their degree of hearing loss will impact on their ability to communicate but other factors such as visual impairment, intellectual disabilities, literacy and language levels may also affect their ability to cope.
Although most people with impaired hearing can benefit from wearing a hearing aid or aids, many will neither acquire nor wear them. An understanding of the wide range of factors which influence this should be developed as many people with normal hearing have little understanding of what sound is like when heard through a hearing aid. As well as practical difficulties, the high cost involved and problems associated with sound reproduction, there is a social stigma attached to having a hearing impairment and many will reject wearing an aid for this and cosmetic reasons.
Hearing impairment is a varied and complex disability. Each hearing impaired individual experiences their hearing disability in a unique and individual way. The invisible nature of hearing impairment means that it is often not recognised and its impact on a person's ability to communicate has considerable implications for both their ability to function normally and in the way that they feel about themselves. Isolation and loneliness are aspects of hearing impairment not readily recognised by others and hearing impairment is often regarded as a less severe or secondary form of disability. This lack of understanding tends to exacerbate feelings of isolation and frustration.
C A U S E S A N D P R EV A L E N C E
The main causes of profound deafness at birth are genetic factors and exposure to the rubella (German measles) virus. Severe head injuries and viral attacks can cause a hearing impairment at any age but the most common causes of hearing impairment are associated with ageing or exposure to noise. Epidemic studies have revealed that as many as one in three people over the age of 65 have impaired hearing. Conservative estimates suggest that approximately 10 percent of the Australian population has some degree of hearing impairment with the majority being among people over the age of 60. It is difficult to gain accurate statistics as many people with a mild hearing impairment do not identify with having a disability or seek any assistance.
Hearing impairment is a varied and complex disability. Each hearing impaired individual experiences their hearing disability in a unique and individual way.
F U N C T I O N A L I M P L I C AT I O N S F O R
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