Audiometry

Audiometry

Audiometry is a branch of audiology that measures hearing acuity by assessing a person's ability to hear sounds of different intensities and frequencies, often using an audiometer and resulting in an audiogram that visually displays the results.

What it is:

Definition:

Audiometry is a test used to evaluate hearing ability by measuring the softest sound a person can hear at different frequencies.

Purpose:

It helps determine the type and degree of hearing loss, and can assist in diagnosing hearing problems and recommending appropriate treatments.

How it's done:

Pure Tone Audiometry:

Uses pure tones (single frequencies) presented through earphones or a bone conduction device to test air and bone conduction.

Speech Audiometry:

Evaluates speech recognition and detection thresholds, which is important for understanding how well a person can hear and understand speech.

Audiogram:

The results of audiometry are plotted on a graph called an audiogram, which visually displays the hearing thresholds at different frequencies.

Types of Hearing Loss:

Audiometry can help differentiate between:

Sensorineural Hearing Loss:

Damage to the inner ear or auditory nerve.

Conductive Hearing Loss:

Problems with the outer or middle ear that prevent sound from reaching the inner ear.

Mixed Hearing Loss:

A combination of both sensorineural and conductive hearing loss.

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