deafness


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Related to deafness: nerve deafness, Congenital deafness

deafness

 [def´nes]
hearing loss; lack or loss of all or a major part of the sense of hearing. For types, see under hearing loss.
Alexander's deafness congenital deafness due to cochlear aplasia involving chiefly the organ of Corti and adjacent ganglion cells of the basal coil of the cochlea; high-frequency hearing loss results.
central deafness that due to causes in the auditory pathways or in the brain; see hearing loss.
conduction deafness (conductive deafness) conductive hearing loss.
functional deafness functional hearing loss.
hysterical deafness functional hearing loss.
pagetoid deafness that occurring in osteitis deformans of the bones of the skull (paget's disease).
sensorineural deafness
1. that due to a defect in the inner ear or the acoustic nerve. See hearing loss.
word deafness auditory aphasia.

deaf·ness

(def'nes),
General term for inability to hear.

deaf·ness

(def'nĕs)
General term for loss of the ability to hear, without designation of the degree or cause of the loss.

deafness

Partial or complete loss of hearing. Deafness may be conductive or sensorineural. Conductive deafness results from disorders of the external ear, eardrum, middle ear and acoustical link to the inner ear; sensorineural (nerve deafness) results form disorders in the inner ear-the cochlea or acoustic nerve.

deaf·ness

(def'nĕs)
General term for inability to hear.

Patient discussion about deafness

Q. what is this immediate hearing loss???? I woke up yesterday and didnt hear anything, only very high tones in my left ear. I also feel nausious and dizzy. please tell me someone has experienced it and it goes away in a few days!!! I'm very scared to loose my hearing forever, it's been 24 hours that I'm almost deaf. thank you

A. Acute hearing loss can be caused due to an infection of the middle ear or internal ear that can cause dizziness nausea fever and vomiting as well. You should see a doctor for proper diagnosis and treatment.

More discussions about deafness
References in periodicals archive ?
Additionally, genetic variations in TH (OMIM: 191290) and EVC2 (OMIM: 607261) encoding Tyrosine Hydroxylase and EvC Ciliary Complex Subunit 2 respectively, have also been reported in deafness.
DFNB9 deafness is caused by mutations in the gene coding for otoferlin, a protein that plays a key role in transmitting sound information at the inner hair cell synapses .
To another query, Dr Javaid Iqbal said traffic wardens and factory workers were more exposed to deafness in the later part of their lives, adding that they should undergo a medical check-up annually.
A review of maternally inherited diabetes and deafness. Front Biosci (Landmark Ed) 2014 Jan;19:777-782.
Agarose gel electrophoresis was performed for evaluating the quality and quantity of DNA samples according to the routine protocol, excluding common deafness genes.
The team hopes that as knowledge of gene editing grows - along with the results of this study to back up claims- doctors could reverse or even prevent deafness in humans too.
Strain, Ph.D., a leading veterinary researcher on deafness and professor of neuroscience at Louisiana State University School of Veterinary Medicine.
In this way, number of children with deafness enrolled in special education institutions is 16082 which constitute 58%of the enrolment of all children with other disabilities.
Cortical deafness is an unusual disorder due to bilateral representation of auditory pathways.
The clinical features of CT images of the temporal bones are now well recognized through reported cases.[sup][11],[21],[23],[24] Besides the characteristics of CT images, audiological phenotype of DFNX3 is defined as profound deafness with or without a conductive element.[sup][7],[14],[19],[25] The conductive component in the audiogram could also be concerned about because of an atypical communication between an internal auditory canal and the inner ear leading to a pathologic third window which deteriorates air-conducted thresholds and increases bone-conducted thresholds.
Visit the Unilateral Deafness Treatment Devices Market, 2013-2020 report at https://www.ihealthcareanalyst.com/report/unilateral-deafness-treatment-devices-market/.
In the present study 68 children assessed, the most commonly found aetiology of deafness was the unknown type in 34 (50%) children.