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A perforated eardrum can have one of many causes, such as: Infection (otitis media). [3] This infection may then spread through the middle ear and may reoccur. [3] Trauma. This may be caused by trying to clean ear wax with sharp instruments. It may also occur due to surgical complications. [4] Overpressure (loud noise or shockwave from an ...
Cochlear hydrops preferentially affects the apex of the cochlea where low-frequency sounds are interpreted. Due to the fluid imbalance in this area, parts of the cochlea are stretched or under more tension than usual, which can lead to distortions of sound, changes in pitch perception, or hearing loss, all usually in the low frequencies.
The ear thereby converts and amplifies vibration in the air to vibration in cochlear fluid. [1] The malleus bone bridges the gap between the eardrum and the other ossicles. [2] Rupture or perforation of the eardrum can lead to conductive hearing loss. Collapse or retraction of the eardrum can cause conductive hearing loss or cholesteatoma.
In many cases, it is not clear what causes the disorder. Ménière’s attacks occur when there is an increase in endolymphatic volume in the inner ear, causing a temporary leak in the membrane separating the perilymph (potassium poor fluid) and the endolymph (potassium rich fluid). The mix of these two fluids surrounding the vestibular sensory ...
When a person has a shock wave, not only is the eardrum ruptured, but also has ossicular discontinuities. The explosion or blast if powerful can cause traumatic brain injury. As a result, a person could have an auditory processing disability. Lung injures can develop as well as some injuries to the viscera. [8]
Tympanic membrane rupture: disruption of the eardrum. This can be caused by a blow to the ear, blast injury, barotrauma, or direct penetration of the tympanic membrane by an object entering the ear. [5] Noxacusis (Pain Hyperacusis): causes pain in the ear when exposed to noise that typically does not cause pain. [25]
In otitis media, the ear is infected or clogged with fluid behind the ear drum, in the normally air-filled middle-ear space. This is the most common infection and very common in babies younger than 6 months. This condition sometimes requires a surgical procedure called myringotomy and tube insertion.
Failure to equalise may be due to inexperience or eustachian tube dysfunction, which can have many possible causes. [1] Unequalised ambient pressure increase during descent causes a pressure imbalance between the middle ear air space and the external auditory canal over the eardrum, referred to by divers as ear squeeze , causing inward ...