Nature: Presbycusis is a type of sensorineural hearing loss that occurs gradually as people age. In some cases, there may be a loss of ability to discriminate sounds. That is, a person may be able to hear sounds, but may not be able to make words out of them. The cause is that tiny inner-ear hair cells (sensory neuroreceptor cells) degenerate, leading to a gradual loss of hearing. These cells send electrical sound impulses to the brain where sounds are received and processed.
Incidence: Presbycusis generally begins to affect people between ages 55 and 65, but may not occur until much later.
Problem Type: G: Very specific problems
Date of last update 18.12.2001 – 00:00 CET