Deafness can be classified according to the degree of loss, the location of the injury, the age of onset.
Deafness can be classified according to the degree of loss, the location of the injury, the age of onset.
Presbiacusia it's characterized by a progressive deterioration of the capacity to hear and/or understand the verbal message.
"Sudden hearing loss" means a single or bilateral perceptual deafness usually of relevant importance, with sudden onset and unknown etiology.
The refinement of the method and the achievement of a more precise definition of peripheral auditory function is now widely felt in the scientific field in view of the social impact that hearing impairment entails.