Types of hearing loss
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Anatomy of ear
Hearing is the process of converting sound waves in the air into signals that our brain interprets as sounds.
The Ear Canal and Eardrum: Sound enters through the ear canal and reaches the eardrum. The sound waves cause the eardrum to vibrate. These vibrations are passed on to three small bones in the middle ear, called the malleus, incus, and stapes.
Amplification by the Middle Ear: These tiny bones amplify the sound and transmit it to the inner ear. The sound causes fluid in the cochlea (a spiral-shaped part of the inner ear) to move. This movement creates waves on the basilar membrane, a structure within the cochlea.
Cilia and Electrical Signals: The movement of the fluid makes tiny hair-like structures, called cilia, move back and forth. When the cilia bend, they generate electrical signals. These electrical impulses are sent to the brain via the auditory nerve.
Brain Interpretation: The brain processes these signals to determine the pitch, volume, and timing of the sound. This information helps us understand our environment, distinguishing between different sounds like someone talking or a car horn honking.
Sensorineural hearing loss
Hearing loss is nerve loss caused by problems with the Cochlea, the auditory nerve, or the part of the brain that controls hearing. Most Sensorineural Hearing Loss is caused by problems or damage to the Cochlea -Retro Cochlear, which can be caused by age, high blood pressure, too much noise, ototoxic drugs, birth flaws, genetics, strain, external factors, etc. Hearing aids are the best solution for sensorineural hearing loss.
Conductive hearing loss
Hearing loss is medically or surgically treatable when caused by wax buildup, glue ear, perforation of the tympanic membrane, obstruction of the Eustachian tube, inflammation of the middle ear, or a lack of continuity or elasticity in the ossicular bone chain. Hearing aids are typically helpful for patients with Conductive Hearing Loss, especially when other treatments, such as medication or surgery, don’t work.
Mixed hearing loss
Mixed hearing loss is a mix of conductive and sensorineural hearing loss. It happens when the outer or middle ear, as well as the inner ear or auditory nerve, are damaged. This type of hearing loss can be caused by chronic ear infections, trauma, medicines, or aging. Mixed hearing loss can be treated with hearing aids, surgery, or both, depending on the severity and cause.
Noise-induced hearing loss
Excessive noise typically causes NIHL. Military, police, construction, manufacturing, farmer, dentist, and kindergarten teachers are at danger of hearing impairment from this. Rock concerts and loud MP3 players damage hearing. Loud noises can accelerate hearing loss. Loud noises require ear protection. NIHL can result from strong noises like explosions. Working in a woodshop with loud noises might also cause it.
Fun activities can damage hearing. These include shooting, hunting, riding snowmobiles, listening to music excessively loudly through earbuds or headphones, playing in a band, and attending noisy concerts. Lawnmowers, leaf blowers, and woodworking equipment can cause hearing damage.
Sudden sensorineural hearing loss
it’s a medical issue that needs attention immediately. It can be recognized by sudden hearing loss in one or both ears, which is often followed by feeling dizzy or hearing ringing in the ears. Sudden sensorineural hearing loss is often hard to figure out, but it is thought to be caused by things like virus infections, autoimmune diseases, or problems with blood flow to the inner ear. Treatments for sudden sensorineural hearing loss include corticosteroids and influenza drugs.