Hearing Aid

There are various reasons for hearing loss. You can prevent only certain types of hearing loss. In case deafness is inherited by children from their parents, who suffered from hearing disorders, it is called hereditary hearing loss. This type of hereditary hearing loss usually occurs because of malformations in the inner part of the ear. People who suffer from such hereditary loss are born deaf.

Let us first tell you something about hearing loss.

Hearing loss is of three types, namely conductive hearing loss, sensorineural hearing loss or nerve deafness, and mixed hearing loss. Nerve deafness norm is the threshold at which the sensorineural nerve cannot transmit sound-related pulses, due to which significant hearing loss results

Sensorineural hearing loss may occur, if there is any problem in the inner part of the ear. A projection hearing loss calculator helps forecast a hearing-impaired personÂ's hearing loss after a certain number of years, based on the results of an audiogram of that person taken now.

Continuous exposure to an excessive noise level is the main cause of hearing loss. For hearing loss noise level, especially that above 85 decibels, is largely responsible.

Hereditary hearing loss may be inherited by a child from either one or both the parents. As a result of this, the child is born deaf.

Hereditary loss of hearing occurs due to defects in genes. When genes are defective, loss of hearing or any other sort of disorders may also be passed on to children from their parents. Thus, the child will also have a hearing impairment.

Hereditary loss of hearing can either be syndromic or nonsyndromic. Hearing loss that causes certain other problems apart from loss of hearing is known as syndromic hearing loss. These associated problems include visual disorders. On the other hand, when there is no additional problem except hearing impairment the hearing loss is known as nonsyndromic hearing loss.

Hereditary hearing loss can still be categorized into two other types. It may be dominant or recessive. When hearing loss is passed on only through a single defective gene from either of the parents, the transmission is known as dominant. But when a single defective gene is required from both the parents to pass on the deafness, the transmission is known as recessive transmission.

More than half, the total number of deaf infants born every year, suffer from hereditary loss of hearing. Hereditary hearing impairment is not always present in a child right from birth. Some infants may develop this loss of hearing some time after they are born.

Scientists engaged in genetic research have found the molecular base of hearing loss. This research will hopefully help understand how hearing loss is passed on from parents to their child. This research will also identify the genes in which changes occur.

Through these studies, the working of genes and their role in the development of proper hearing will ultimately be understood. Consequently, the diagnosis of hereditary hearing loss will be done as soon as it occurs.

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