Types of deafness
The ears work as a team and the brain needs both ears to process speech and identify which direction the sound is coming from. Hearing with both ears is known as binaural hearing. If you can only hear with one ear (unilateral hearing), it is difficult to perform the following tasks:
Sounds have to travel around your head so that your “good ear” can send them to your brain. As a result, sounds can be difficult to hear and understand clearly, especially in noisy environments.1 This is especially true for higher frequency sounds.
Bimodal hearing combines the benefits of a hearing aid in one ear and a hearing implant in the other. You may find that sounds are easier to hear and speech is easier to understand.
Bilateral hearing loss causes
The types of hearing loss depend on the affected part of the ear and the level of hearing loss a person has. Learn what conductive, sensorineural or mixed hearing loss is and how to treat it.Hearing loss is measured in decibels (dBHL). This value represents the lowest level at which you or your child can hear. It can be tested for both ears (bilateral) or for each ear (unilateral).
Conductive hearing loss occurs when something prevents sound waves from passing into the inner ear through the outer and middle ear. You can easily mimic conductive hearing loss by plugging your ear – it is basically the same effect.
Symptoms:Speech tends to sound intelligible, but when the volume is loud enough and there is not too much background noise. Conventional hearing aids help, but sometimes it is not enough.
Caused by a problem in the cochlea and/or the auditory nerve, which is the inner part of the ear that converts sound into electrical information and sends it to the brain.The causes of sensorineural hearing loss are diverse, but can generally be classified into two categories: congenital and acquired.
What is hearing loss
The bone deposits it generates alter the transmission of sound by impeding the vibration of the ossicles of the ear, leading to conductive hearing loss. Among the various factors that may be involved in the development of this bone disorder of the ear bones are genetic factors, involving various molecular pathways, including immunological, inflammatory and endocrine factors. In addition, it is estimated that 60% of cases have a family history.
The involvement of the measles virus in the development of otosclerosis has also been studied and it is believed that it may be a trigger for the inflammatory episodes that occur in the active phase of the disease.
On the other hand, in terms of risk factors, hormonal changes that occur at stages such as puberty, pregnancy or menopause, seem to be associated with an exacerbation of hearing loss in patients with otosclerosis.
In the diagnosis of otosclerosis, it is essential for the otolaryngologist to perform an auditory study that will include a liminal tonal audiometry, an audiometry, a vocal audiometry and an impedance audiometry with stapedial reflexes.
Hearing loss can be restored
The provider will take a medical history and perform a physical exam.Some of the tests that may be done are:The following surgeries may help some types of hearing loss:The following may help with long-term hearing loss:Cochlear implants are only used for people who have lost too much hearing to benefit from a hearing aid.Alternative Names: Cochlear implants – cochlear implants
Reviewed By: Josef Shargorodsky, MD, MPH, Johns Hopkins University School of Medicine, Baltimore, MD. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Translation and localization by: DrTango, Inc.