What is audiometry?
Author: Dra. Flora Hernández
Audiometry is a test that evaluates the functioning of the auditory system, which allows us to determine a person’s ability to hear and detect the altered phase of the hearing process.It thus evaluates the correct functioning of the human auditory system.
Proper hearing is a process that follows these steps:
- Reception of sounds in the pinna or ear helps us differentiate from where a sound comes from.
- Passage of sound through the ear canal.
- Shock of the sound in the eardrum, which makes it vibrate like a drum.
- Transmission of vibration by the chain of ossicles, which connect the eardrum with the cochlea.
- Conversion of vibrations to electrical nerve impulses in the cochlea.
- Interpretation of neural signals in the brain.
Audiometry will not tell us exactly which phase of the hearing process is not working correctly. Still, it does tell us if the hearing is altered in the transmission of sound or vibrations (transmission deafness) or is more related to the nervous system (sensorineural deafness), which helps a lot in deciding the most effective treatment.
Sounds modified in their intensity and pitch are used to carry out the test. Intensity is the volume of a sound measured in decibels, and pitch refers to how high or low a sound is heard and measured in hertz. The sounds that humans can hear are 20-150 dB (from 85 dB can damage the ears).
Prevention is the best ally, also in the field of hearing health. Anticipating possible problems is always the best treatment, and in this sense, hearing examinations are critical. It is a quick and painless process, in which audiometry is the primary test to make an accurate diagnosis.
These screenings are especially recommended for people 50 and older. In these cases, any indication of hearing loss is vital to contrast to avoid, or at least stop, some deterioration processes that can be quite rapid.
Those interested can make their appointment now at Ópticas del Sol, since we have an alliance with JR Sánchez Audiologia to carry out screenings.
Also, we already have batteries and accessories for hearing aids available, as well as a hearing aid inspection and repair service.
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