What is deafness? Why happen? In this article, we will give detailed information about deafness which causes a serious communication difficulty that many people face today. Deafness; complete or partial hearing loss in one or both ears. This hearing loss can be temporary or permanent or fluctuating. Hearing loss occurs if the brain does not receive sufficient voice information from the ear.
How does comprise of hearing?
The sound waves that enter the ear strike the vibrating eardrum by moving the auditory canal. Vibrations from the eardrum pass to the three bones known as ossicles in the middle ear. These ossicles increase the vibrations that are then collected by small hair-like cells in the cochlea. The vibrations move as they hit them, and the motion data is sent to the brain via the auditory nerve. The brain processes data that a functional hearing person will interpret as sound.
The ear is divided into three parts; the outer ear, including the visible part of the ear and the ear canal; middle ear consisting of 3 bones through and within the ear; the inner ear, the sensory organ that creates the nerve nerve impulses * to the brain. Any problems that may occur in these sections may cause hearing loss. There are three types of deafness: conductive hearing loss, sensorineural hearing loss, and mixed hearing loss.
In general, the external ear is caused by problems that occur in the part. It is a severe mild-moderate-severe hearing loss caused by congenital failure of the external auditory canal, excessive dirt, tumor, and obstruction of foreign bodies. Hearing loss can be eliminated by surgical treatment.
Congenital deformities *, inner ear infections or head trauma may result in sensorineural deafness. This hearing loss is caused by dysfunction of the inner ear, cochlea * auditory nerve or brain damage. Hearing loss due to damaged hair cells in the cochlea begins to worsen as hair cells lose their function as people age. The most common cause of hair cell damage is prolonged exposure to high frequency sounds. Damaged hair cells cannot be replaced and can therefore be permanent.
This is the combination of conductive and sensorineural hearing loss. Prolonged ear infections can damage both the eardrum and the ossicles. Although not always effective, in some cases surgical interventions may lose hearing.
The most important reason in adults is earwax.
Otosclerosis: the loss of the normal movement ability of the stirrup (a small bone in the middle ear).
Autistic media: inflammation of the middle ear.
Gum ear: accumulation of sticky fluid in the ear.
Rupture of the tympanic membrane may rarely occur.
Deafness can also exist at birth. Injury during childbirth or damage to rubella during pregnancy may occur.
Severe newborn jaundice can also result in internal ear damage.
Diseases such as chickenpox, cytomegalovirus, mumps, meningitis, sickle cell disease, syphilis can be caused.
Damage can also occur due to aging.
WHAT ARE THE SYMPTOMS OF DEAFNESS?
Treatment of deafness depends on the cause and severity. Sensorineural hearing loss is irreversible because of damage to the hair cells in the cochlea, so there is no cure. There are also various treatment methods aimed at improving the quality of life. These are hearing aids that are wearable, with different sizes and different power levels. These devices do not improve deafness, but only increase the frequency of the incoming sound to hear the person more clearly. Hearing aids are not suitable for people with severe deafness.
Otosclerosis is generally treated with an operation known as stapedectomy, which replaces the stirrup bone with a prosthesis.
The gum ear is treated surgically and by inserting a grommet (a tube that allows fluid to be drained from the middle ear). A deaf baby can learn to communicate using sign language, and also snail implants (electrodes that can receive sound signals by plugging into the inner ear) can help deaf adults as well as children.
* What is impulse? Chemical and electrical changes that occur along a nerve wire as a result of excitation.
* The cochlea or ear snail is the auditory part of the inner ear. Inside the inner ear is a spiral shaped cavity.
* Congenital (congenital) deformity (disorder)