What does it mean to be deaf?
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What is considered deafness?
Deafness is hearing impairment, hearing loss caused by various reasons. If the hearing sound threshold is measured, if it exceeds 26 decibels, it is called hearing loss or hearing impairment. It can also be called deafness. Deafness means hearing loss or hearing impairment. There are different opinions. The causes of deafness are complex, including congenital and acquired factors. Among them, purulent otitis media is the most important cause of conductive hearing loss. Secretory otitis media is the main cause of hearing loss in children.
According to the 1997 standards of the World Health Organization: You can judge whether you are deaf according to the degree of hearing loss. Mild deafness: Cannot hear soft speech clearly, hearing threshold is 26~ 40dB. : Moderate deafness: Difficulty hearing during normal speech, hearing threshold 41-60dB. Severe deafness: Must speak loudly, hearing threshold 61-80dB. Extremely severe: need to shout into the ear, hearing threshold is above 80dB
If divided according to the location of deafness, deafness can be divided into four types:
1. Conductive deafness means that sound cannot be transmitted into the ear's sound transmission system, and some related organs have lesions.
Second, sensorineural deafness means that sound can reach the ear, but the ear cannot feel the sound due to the disease. The deafness caused by this reason is called sensorineural deafness.
Third, mixed deafness is both conductive and inductive.
Fourth, central deafness. In central deafness, sounds must be transmitted to the brain and the auditory center to produce hearing. If there is a lesion in the central mechanism, you will definitely not be able to hear sound. Deafness caused by central lesions is called central deafness.
Some people think that deafness is defined as being completely unable to hear, while some peopleIt is considered to be somewhat inaudible, and deafness is already classified as deafness. In fact, both of them are deafness, but if we want to be strict, then the former may not be so accurate.
Deafness is professionally called hearing loss. We generally say that when our average hearing loss is above 26 decibels, we can call it hearing impairment, that is, deafness. Deafness includes hearing loss. Therefore, deafness is also divided into degrees, generally divided into mild, moderate, moderately severe, severe, extremely severe and total deafness.
At the same time, deafness is also divided into several types, mainly divided into three types: conductive deafness, sensorineural deafness and mixed deafness. Among these three types, conductive deafness is relatively easy to treat. Sensorineural deafness is more complicated. Most of the damage to this type of deafness is the inner ear or auditory nerve, so treatment is less likely to restore hearing. Low, usually improved by wearing Hearing Aids.
Mixed deafness means that you have both conductive deafness and neurological deafness, so it is more difficult to treat, but in general, the most important thing for us after hearing loss is to treat it as soon as possible Treatment requires early intervention without delay.
At what level of deafness can I wear a hearing aid?
If the hearing loss is moderate and affects communication, you must wear it. The sooner you wear it, the better the effect of preserving hearing. Mild deafness: you can have normal conversations at close range, but you can’t hear low-pitched conversations. The audiometer checks the pure tone and speech hearing thresholds at 26 to 40dB. Moderate deafness: It is difficult to listen to words at close range, and it is difficult to hear normal speech. The hearing threshold is 41 to 55dB. Moderate and severe deafness: It is difficult to hear loud speech at close range and one must speak loudly. The hearing threshold is 56 to 70dB. Extremely severe deafness: You can only hear when you shout loudly in the ear, the hearing threshold is 71 to 91dB. Total deafness: unable to hear loud shouts in the ear, and the pure tone hearing threshold exceeds 91dB.