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Blepharospasm is a neurological disorder characterized by intermittent, involuntary spasms and contractions of the orbicularis oculi (eyelid) ...
A fasciculation, or muscle twitch, is a spontaneous, involuntary muscle contraction and relaxation, involving fine muscle fibers. [1] They are common, with as many as 70% of people experiencing them. [1]
Spasmodic torticollis is an extremely painful chronic neurological movement disorder causing the neck to involuntarily turn to the left, right, upwards, and/or downwards. The condition is also referred to as "cervical dystonia".
Blepharospasm: muscles around the eyes: The patient experiences rapid blinking of the eyes or even their forced closure causing functional blindness. Oculogyric crisis: muscles of eyes and head An extreme and sustained (usually) upward deviation of the eyes often with convergence causing diplopia (double vision). It is frequently associated ...
The term blepharospasm ['blef-a-ro-spaz-m] can be applied to any abnormal blinking or eyelid tic or twitch resulting from any cause, ranging from dry eyes to Tourette's syndrome to tardive dyskinesia. The blepharospasm referred to here is officially called benign essential blepharospasm (BEB) to distinguish it from the less serious secondary ...
Common pathology referred to a neuro-ophthalmologist includes afferent visual system disorders (e.g. optic neuritis, optic neuropathy, papilledema, brain tumors or strokes) and efferent visual system disorders (e.g. anisocoria, diplopia, ophthalmoplegia, ptosis, nystagmus, blepharospasm, seizures of the eye or eye muscles, and hemifacial spasm).
A spasm is a sudden involuntary contraction of a muscle, [1] a group of muscles, or a hollow organ, such as the bladder.. A spasmodic muscle contraction may be caused by many medical conditions, including dystonia.
In addition, chronic use of benzodiazepines is a risk factor for blepharospasm. [55] Drug-induced symptoms that resemble withdrawal-like effects can occur on a set dosage as a result of prolonged use, also documented with barbiturate-like substances, as well as alcohol and benzodiazepines.