Deafness is a partial or complete loss of hearing, also known as hearing impairment. The normal threshold range is 0-20 decibels (dB), where 0 dB is the threshold for the perception of sound at a given frequency for people with normal hearing.
Submit a request for further information, a quotation or indicative cost. Your enquiry will be forwarded to up to 3 private healthcare providers. They will respond directly with further information.