NationMaster - Encyclopedia: Profound hearing loss

Profound hearing loss is defined as hearing thresholds greater than 90 dB. A person with a profound hearing loss can only hear sounds that are louder than 90 dB. A person with normal hearing can detect sounds betwen 0 dB and 20 dB. DB or db or dB may stand for: Database, an organized collection of data DB (car), a French automobile maker Decibel (dB), the ratio between two quantities, used in acoustics and electronics Deutsche Bahn, the major German railway company Deutsche Bank, a German bank Discovery Bay, a residential development in...

External links

"Profound Hearing Loss" from The Queensland Department of Education and the Arts

Results from FactBites:

Hearing Loss (part 1), NCBDDD, CDC (2694 words)
	Hearing loss severity is based on how well a person can hear the frequencies or intensities most often associated with speech.
	Central: Hearing loss caused by a problem along the pathway from the inner ear to the auditory region of the brain or in the brain itself.
	However, in most children with hearing loss that is due to a genetic cause, the hearing loss is not part of a syndrome.

More results at FactBites »

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