Hearing impairment or deafness is the inability to hear from one or both ears. This defect may be inborn or acquired and however it was gotten, there is a remedy, if not cure for the impairment. Hearing aids are great devices that had been brought about by technology and as better and better innovations come, the hearing aids were becoming more and more sophisticated and also affordable.
Causes of Deafness
Deafness can be inborn, a kind of congenital disorder, meaning that this had resulted from complications at time of birth. This defect can at times be caused by a disease that afflicted the mother especially in the first trimester of pregnancy. When you were born without this defect, you can lose the capacity to hear through one of several factors. This can be caused by certain diseases - meningitis, ear infection or use of drugs. Exposure to frequent loud noises can also cause this defect which can be temporary or transitional or worse case of permanent disability. This can occur naturally to advancing age so that senior citizens usually become hard of distinguishing sounds.
Kinds of Impairment
There are different kinds and levels of impairment or inability to hear. This degree of one's failure to hear sounds depends on the damage to the ear. The defect can be temporary or permanent, depending on the damage to any part of the ear. When the damage occurs in the outer or middle ear, the diminished sound perception is called conductive. This type thwarts the capability of people to recognize sounds and clear speech. A cause for this conductive ear disease is formation of foreign fluid in the outer and middle parts.
Another kind is the sensori-neural loss. This is contracted due to damages caused by infections in the inner ear. Another reason for its acquisition is the malfunctioning of the central auditory nerve. This is usually a permanent defect but can be solved through the use of hearing aid.
Use of Hearing aid
There is a wide array of different aids to be able to recognize sound and the broad categories are the analog and the digital devices. These aids will capture the sound, amplify it and ultimately transmit it to the ear. The parts of the ear gadget are microphone, amplifier and receiver. In the analog kinds, a circuit board is fitted into the device. In the digital kinds, there are computer chips that automatically adjust the inflow of sounds.
The devices, whether analog or digital, are not for perpetual use. They can accumulate dirt with continuous usage. The dirt can interfere with the deliberation of sound. The remedy to the situation is easy - have the gadget cleaned by professionals which will eventually bring back the quality of sound.
Deafness has several causes and depending on the damaged part - outer, middle or inner is the classification or type. However, the great news about the loss to perceive sound is the availability of solution - the hearing aids.