Deafness: Partial or complete hearing loss. Levels of hearing impairment vary from a mild to a total loss of hearing. Elderly adults suffer most often from hearing loss. The most common cause of hearing loss in children is otitis media. A substantial number of hearing impairments are caused by environmental factors such as noise, drugs, and toxins. Deafness can also result from inherited disorders.
Reviewed on 5/13/2016