Hearing tests measure how well you are able to hear. Normal hearing happens when sound waves travel into your ear, causing your eardrum to vibrate. The vibration moves the waves farther into the ear, where it triggers nerve cells to send sound information to your brain. This information is translated into the sounds you hear. Sensorineurual (also called nerve deafness). This type of hearing loss is caused by a problem with the structure of the ear and/or with the nerves that control hearing. It may be present at birth or show up late in life. Sensorineural hearing loss is usually permanent. This type of hearing loss ranges from mild (the inability to hear certain sounds) to profound (the inability to hear any sounds). Hearing tests are used to find out whether or not you have a hearing problem and, if so, how serious it is.
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