The involuntary, forcible closure of the eyelids. The first symptoms may be uncontrollable blinking. Only one eye may be affected initially, but eventually both eyes are usually involved. The spasms may leave the eyelids completely closed, causing functional blindness even though the eyes and vision are normal. Blepharospasm is a form of focal dyst [..]

A condition of an animal involving involuntary spasms of the eyelid.

excessive involuntary contraction of the orbicularis oculi sometimes resulting in functional blindness; a focal dystonia

n. a neurological condition in which there is involuntary closure of the eyelids. It may also manifest as an abnormal twitching or blinking of the eye. It is often caused by dry eyes, tardive dyskines [..]

Spasm of an eyelid's muscle that causes a blink or involuntary eye closure.

Uncontrolled blinking or involuntary closing of eyelids.

A condition that causes involuntary blinking to an excessive measure that the affected individual cannot see. Blepharospasm is considered as a form of functional blindness.

(n) spasm of the eyelid muscle resulting in closure of the eye

Spasmodic and frequent blinking of the eyes (tonic spasm of the orbicularis oculi muscle).

Blepharospasm is a form of localised dystonia that involves involuntary tight contractions of the eyelids. Blephrospasm can also occur when the eye is in pain – this is not associated with dystonia.

Excessive winking; tonic or clonic Spasm of the orbicularis oculi Muscle.

Excessive winking; tonic or clonic spasm of the orbicularis oculi muscle.

spasmodic winking caused by the involuntary contraction of an eyelid muscle