How much do you know about hearing loss?

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Vision and hearing are two very important senses in our lives. Both of them are the senses that allow us to understand the world. I believe that protecting eyesight is something that all 3-year-old children know. What about hearing? Both are obviously extremely important, but we tend to pay attention to vision but ignore hearing.


How much do you know about hearing loss? Hearing loss is also called deafness or hearing level. It is the number of decibels by which the human ear's hearing threshold at a certain frequency is higher than the normal hearing threshold. Hearing loss caused by age is called presbycusis; hearing loss caused by social environmental noise (excluding the effects of age, occupational noise and disease) is called social deafness; hearing loss caused by occupational noise is called noise-induced hearing loss deaf.


[Types of hearing loss]
Hearing loss is a manifestation of auditory dysfunction. In mild cases, it is called hard of hearing or hearing loss, and in severe cases, it is called deafness or total deafness. Generally speaking, hearing loss is divided into three categories: conductive, sensorineural, and mixed.
1. Conductive hearing loss: Lesions in the outer or middle ear impede the transmission of sound waves into the inner ear.
2. Sensorineural hearing loss: Lesions in the cochlea, auditory nerve or auditory center cause hearing loss that impairs sound perception and cognitive function.

3. Mixed hearing loss: Any factors that cause conductive hearing loss and sensorineural hearing loss coexist can cause mixed hearing loss, which has both conductive hearing loss and sensorineural hearing loss. Characteristics of neurological hearing loss.

The International Health Organization (WHO-1997) divides hearing loss into the following types:
An average hearing loss of less than or equal to 25 decibels is considered normal hearing.
An average hearing loss between 26 and 40 decibels is called mild hearing loss.
An average hearing loss between 41 and 60 decibels is called moderate hearing loss.
An average hearing loss between 60 and 80 decibels is called severe hearing loss.

An average hearing loss of 80 decibels or more is called profound hearing loss.


When you are in daily lifeIf you have difficulty hearing when communicating, cannot hear what others say, and often ask others to repeat words, it means that you have suffered from hearing loss. For hearing loss, early treatment is the best. Generally speaking, the treatment of deafness is The sooner you have the better chance of recovery.