Hearing loss is a common problem caused by noise, disease, aging, illness, and genetics. General signs of hearing loss occurs suddenly and develops gradually that includes asking people to repeat themselves, listening to music or television with a higher volume than required. There are two main types of hearing loss depending on where the problem lies they are conductive hearing loss, sensorineural hearing loss.
Sensorineural is caused by damage to the auditory nerve that occurs naturally with age. There are several options that help to improve a person’s ability to hear and communicate which includes digital hearing aids, cochlear implants, middle ear implants, bone anchored implants, wireless devices, etc. The 35delG mutation was detected in 11/ 712 unrelated blood donors.
Approximately 15 per cent of people living outside Major cities have hearing disorders compared with 12 per cent of those living within them. Prevalence rates for hearing loss are largely related to age. Less than 1 per cent of people under the age of 15 are affected by hearing loss, whereas three in every four people over the age of 70 are affected. The ageing of Australia’s population is more marked in rural areas with 40 per cent of all Australians 70–74 years of age living outside Australia’s capital cities compared with only 25 per cent of people aged 25–29.