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The majority of tympanic membrane retractions do not cause any symptoms. Some cause hearing loss by restricting sound-induced vibrations of the eardrum. Permanent conductive hearing loss can be caused by erosion of the ossicles (hearing bones). Discharge from the ear often indicates that the retraction pocket has developed into a cholesteatoma.
Patulous Eustachian tube is a physical disorder. The exact causes may vary depending on the person and are often unknown. [5] Weight loss is a commonly cited cause of the disorder due to the nature of the Eustachian tube itself and is associated with approximately one-third of reported cases. [6]
The term diplacusis has been used in cases which people with unilateral cochlear hearing losses or asymmetrical hearing losses, the same tone presented alternately to the two ears may be perceived as having different pitches in the two ears. [8] [9] The magnitude of the shift can be measured by getting the subject to adjust the frequency of a ...
I've been hands-on with the Nothing Ear flagship earbuds. The 2024 refresh of the transparent noise-cancelling buds makes them the brand's best model yet.
Many electric guitar players intentionally overdrive their amplifiers (or insert a "fuzz box") to cause clipping in order to get a desired sound (see guitar distortion).. Some audiophiles believe that the clipping behavior of vacuum tubes with little or no negative feedback is superior to that of transistors, in that vacuum tubes clip more gradually than transistors (i.e. soft clipping, and ...
Eye drops are being recalled due to a rare bacterium found in artificial tears. Find a list of recalled drops in 2023. Plus, eye infection symptoms.
They also fit better and, frankly, just sound way better. In September 2024, the FDA approved the AirPods Pro 2 to be used as hearing aids, a huge development for these powerful little buds.
From January 2008 to May 2010, if you bought shares in companies when Raymond G. Viault joined the board, and sold them when he left, you would have a -30.7 percent return on your investment, compared to a -24.0 percent return from the S&P 500.