A very basic introduction to hearing aids.
A hearing aid is designed to bring sounds, especially speech, more effectively to the ear of a person with hearing loss. Typically a person with sensorineural deafness has a raising of thresholds of hearing and the basic principles of how the aid may overcome the loss is described.
D001309:Auditory Threshold; D006310:Hearing Aids; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology / Q000628:therapy*; D006801:Humans