What is an "audiologist"?

What is an "audiologist"?

Jason Hamilton (Facial Plastic & Reconstructive Surgeon) gives expert video advice on: What should I do if I suffer a sudden hearing loss?; How does excessive noise affect my hearing?; Which diseases or illnesses can cause hearing impairment? and more...

An audiologist is someone who's trained at doing hearing exams. They differ from otolaryngologists in that they study the principles of physics of hearing. Audiologists do an audiometric exam which kind of measures the level that you hear and the level of hearing loss. They are equivalent to an optometrist in the eye field.