Everyone knows what hearing is. Hearing loss, or deafness, is the partial or total inability to hear sound in one or both ears. The human ear is remarkable as is the smallest and most complex organ in the body. Considering the ear's delicacy, it is remarkably resilient. Nevertheless, illness or injury can impair our ability to hear properly.
It is possible that someone who has hearing loss may be able to hear some sounds or simply nothing at all. Often people also call it deaf, deafness, or hard of hearing when they're talking about hearing loss.
It has been observed that out of 1000 babies born, three may have hearing impairment. This is the most common birth defect. Although there is a possibility that hearing problem can also develop later in life, there are many types of hearing loss:
1. Conductive hearing loss: it is a problem with the part of the outer or middle ear. Most patients with conductive hearing loss have a mild hearing loss and it is usually temporary because in most cases medical treatment can help. It could be when one has middle ear infections, collection of fluid in the middle, blockage of the outer ear (by wax), damage to the eardrum by infection or an injury.
2. Sensory hearing loss: This happens when the cochlea is not working correctly because the tiny hair cells are damaged or destroyed. Depending on the loss, a patient may be able to hear most sounds (although they would be silent); only some sounds; or no sounds at all. Sensory hearing impairment is almost always permanent and a patient's ability to talk normally may be affected. It could be due to age-related hearing loss that people experience as they get older, injury caused by loud noise to the hair cells, viral infections of the inner ear (may be caused by viruses such as mumps or measles), Meniere's disease (abnormal pressure in the inner ear), a brain tumor or a stroke.
3. Mixed (conductive and sensory combined) hearing loss: this happens when the outer and middle ear is affected and also the tiny hair cells are damaged. This is a very critical case and cannot be cured fully.
4. Neural hearing loss: This happens when there is a problem with the connection from the cochlea to the brain. Neural means related to nerve, so neural hearing loss means the nerve that carries the messages from the cochlea to the brain is damaged. In recent years, substantial advances have made it possible to determine the cause of hearing impairment in nearly all cases, and to treat the hearing loss in many of them.
What Is Hearing Loss
Of the estimated 28 million American patients of hearing loss problems, 54 % adults older than age 65 suffer from significant hearing loss. This makes hearing loss the third most frequently reported chronic medical condition in America. To determine whether adult hearing loss has occurred in grown ups, audiologists conduct different tests for a complete hearing evaluation. After confirmation of the hearing loss problems, adult hearing loss is treated by a variety of methods including hearing aids, aural habilitation, and cochlear implantation etc. Hearing loss in adults is caused by a number of factors including infection or disease, drugs, continuous and excessive exposure to noise, trauma, or aging process. Sometimes the hearing loss is accompanied by ringing in the ears, sometimes there is no ringing.
Who Should Take a Hearing Loss Test?
Anyone who suspects some degree of hearing loss should undergo hearing tests. Most commonly people come to doubt the efficiency of their hearing when they start experiencing difficulty in correct understanding of conversation between persons or on phone. People who have a family history of adult hearing loss or those who are exposed to loud noise during work should also have their hearing checked. Following tests are included as part of the comprehensive hearing test.
Pure Tone Testing
In this test, the audiologist will ask to report hearing a series of tones after your ears have been plugged with foam plugs. The softest sounds that you can hear are plotted by the audiologist who will also test you for several different frequencies with a bone conductor.
Speech Audiometry
Two hearing tests make speech audiometry. First, you will be tested for the softest level at which you are able to repeat words, usually of two syllables. The second test will check your ability of comprehending speech at a moderately loud level of listening.
Acoustic Immittance Measures
This adult hearing loss test determines the movement of the eardrum and that of the middle ear by placing a soft plug in the subject's ear. It detects any problem in the eardrum or middle ear that may cause hearing loss.
Acoustic Reflex Testing
The acoustic reflex of the subject is tested by presenting several loud tones after placing a soft plug into each ear canal. By this means, the function of the middle ear is thoroughly tested.
Specialized Hearing Loss Tests
Based on the audiometric testing or the subject's own particular case, the audiologist may suggest specialized tests including: Auditory Brainstem Response, Threshold Auditory Brainstem Response, Electrocochleography, and Otoacoustic Emissions.
Both John Currie & Tanjak are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
John Currie has sinced written about articles on various topics from Ear Nose and Throat, Alternative Medicine and Home. John Currie provides information and advice on tinnitus, hearing loss and Meniere's disease at The website has been active on the web since 1999 and have. John Currie's top article generates over 4400 views. to your Favourites.
Tanjak has sinced written about articles on various topics from Pets, Home and Dog Training Collars. There are many ways in which you can test your hearing loss. If you want to learn more about Hearing Loss, author of this article, Tanja Kelly, has made an informational website about. Tanjak's top article generates over 2400 views. to your Favourites.
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