Deafness is the complete inability to hear sound. Deafness and hearing loss have many causes and can occur at any age.
[bodyandhealth.canada.com]
Age-related hearing loss, Presbyacusia, senile deafness, age related hearing loss, hard of hearing (presbyacusis), presbyacusis, senile presbyacusis, Presbycusis;senile,
[fpnotebook.com]
Western Institute for the Deaf and Hard of Hearing WIDHH is a non-profit organization dedicated to creating a society in which people who are deaf, deafened, deafblind and
[fraserhealth.ca]