Home > Terms > English, UK (UE) > Hemifacial spasm

Hemifacial spasm

Involuntary muscles twitches on one side of the face, typically caused by compression of the seventh (facial) cranial nerve by a neighbouring blood vessel somewhere in the brain.

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  • Part of Speech: noun
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  • Industry/Domain: Health care
  • Category: Optometry
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Related terms

hemifacial spasm
Health care; Optometry

Involuntary muscles twitches on one side of the face, typically caused by compression of the seventh (facial) cranial nerve by a neighboring blood vessel somewhere in the brain.

hemifacial spasm
Medical; Health care; Medicine

Recurrent clonic contraction of facial muscles, restricted to one side. It may occur as a manifestation of compressive lesions involving the seventh cranial nerve (facial nerve ...

hemifacial spasm
Health care; Diseases

Recurrent clonic contraction of facial muscles, restricted to one side. It may occur as a manifestation of compressive lesions involving the seventh cranial nerve (facial nerve ...

spasm
Health care; Cancer treatment

A sudden contraction of a muscle or group of muscles, such as a cramp.

spasm
Health care; Hospitals

A brief automatic jerking movement. A muscle spasm can be quite painful, with the muscle clenching tightly. Spasms may be caused by stress, medication, over-exercise, or other ...

spasm
Pharmaceutical; Medical devices; 

1. a sudden, violent, involuntary contraction of a muscle or a group of muscles, attended by pain and interference with function, producing involuntary movement and distortion. 2. ...

ophthalmoscope
Eyewear; Optometry

An optical instrument used to examine the external and internal parts of the eye, particularly the media and the fundus.

pantoscopic angle
Eyewear; Optometry

1. Angle in the vertical plane between the optical axis of a spectacle lens and the visual axis of the eye in the primary position, usually taken to be the horizontal. 2. Angle ...

optical material
Eyewear; Optometry

Transparent material capable of being manufactured into optical components.

optical radiation hazard
Eyewear; Optometry

Possibility of damage to the retina by optical radiation.

optical centre
Eyewear; Optometry

For practical purposes, the intersection of the optical axis with the front surface a lens.

ophthalmoscope
Optometry; Optometry

An optical instrument used to examine the external and internal parts of the eye, particularly the media and the fundus.

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