Although there are many levels of
hearing loss, when the hearing threshold falls below 30 dB, one can objectively
speak about a deafness issue. One might speak about deafness or severe hearing
loss in situations where the noise level is between 80 and 100 dB. Cofosis, or
total loss of hearing, is the inability to sense anything at all.
Deafness does not always have the same
cause. Sometimes the issue is with the middle or outer ear. Sound cannot reach
the inner ear due to this defect. One of the reasons of this form of hearing
loss, known as transmission deafness, is a malfunctioning eardrum as a result
of ruptures, inadequate ventilation or otitis, or some congenital change of the
chain of bones (the malleus, the incus, and the stirrup) that amplify and
transmit sound to the inner ear.
Perception or neurosensory deafness is a
different kind of hearing loss. It happens when a lesion affects either the
auditory nerve, which sends sound waves to the brain and is what actually
causes us to hear, or the inner ear (cochlea). In this way, even if every
component of the ear is functioning normally, we will still be unable to
perceive anything if the nerve that sends the sound signal to the brain is
damaged.
It is best to visit an expert to
determine whether you have a hearing level that is optimal. Particularly if you
are above 30, it is recommended to have reviews every year or at least every
two years. Since hearing is crucial for the development of language and social
skills in children, it is crucial to identify the issue as soon as possible. Cortexi
Reviews
When you hit or clap a baby very close
to him but he doesn't see the gesture and remains motionless, without closing
his eyes or making any other movement, it is possible that he has a hearing
loss problem. for a shock. In any scenario, a straightforward otoacoustic
emission test can be performed to confirm the diagnosis. It involves inserting
a tiny probe into the ear to capture the acoustic emissions that all healthy
ears naturally produce.
Auditory evoked potentials of the brain
stem are a different test that is accessible. With the help of this test, it is
possible to determine whether the cochlea itself has been damaged or the nerve
connections that exit the cochlea and travel to the brain (retrocolcear
deafness).
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