Audiology, derived from the Latin audīre meaning ``to hear`` and the Greek -λογία, -logia, is a scientific discipline dedicated to the study of hearing, equilibrium, and associated disorders. Audiologists, the practitioners in this field, address hearing impairments and proactively work to prevent related damage. Employing diverse assessment methods such as hearing tests, otoacoustic emission measurements, video nystagmography, and electrophysiological tests, audiology aims to ascertain an individual's auditory capabilities within the normal range and identify any affected frequency ranges (high, middle, or low) and their severity.

Upon identifying hearing loss or vestibular abnormalities, audiologists offer tailored recommendations to patients regarding potential solutions such as hearing aids, cochlear implants, or appropriate medical referrals. Beyond evaluating hearing, audiologists engage with various clients in rehabilitation, including those with tinnitus, auditory processing disorders, or users of hearing aids and cochlear implants, spanning from pediatric to veteran populations. They also conduct assessments for tinnitus and vestibular system disorders.

Audiologists are healthcare professionals with specialized expertise in identifying, diagnosing, treating, and monitoring disorders of the auditory and vestibular portions of the ear. They are skilled in managing hearing, tinnitus, and balance issues, as well as dispensing, overseeing, and rehabilitating hearing aids, and evaluating candidacy for cochlear implants and mapping procedures.

They counsel families through a new diagnosis of hearing loss in infants, and help teach coping and compensation skills to late-deafened adults. They also help design and implement personal and industrial hearing safety programs, newborn hearing screening programs, school hearing screening programs, and provide special fitting ear plugs and other hearing protection devices to help prevent hearing loss. Audiologists are trained to evaluate peripheral vestibular disorders originating from inner ear pathologies. They also provide treatment for certain vestibular and balance disorders such as Benign Paroxysmal Positional Vertigo (BPPV).

In addition, many audiologists work as auditory scientists in a research capacity. Audiologists have training in anatomy and physiology, hearing aids, cochlear implants, electrophysiology, acoustics, psychophysics, neurology, vestibular function and assessment, balance disorders, counseling and sign language. An Audiologist usually graduates with one of the following qualifications: MSc(Audiology), Bsc(Honours), Au.D, STI, PhD, or ScD, depending the program and country attended.

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