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The main symptoms involve involuntary blinking and chin thrusting. Some patients may experience excessive tongue protrusion, squinting, light sensitivity, muddled speech, or uncontrollable contraction of the platysma muscle. Some Meige's patients also have "laryngeal dystonia" (spasms of the larynx). Blepharospasm may lead to embarrassment in ...
Injections of botulinum toxin may diminish in effectiveness with prolonged use and require increased dosage. [48] Injections of botulinum toxin increase the risk of visual complaints and ptosis (eyelid droop). [46] Patients who do not respond well to medication or botulinum toxin injections are candidates for surgical therapy.
Blinking is a bodily function; it is a semi-autonomic rapid closing of the eyelid. [1] A single blink is determined by the forceful closing of the eyelid or inactivation of the levator palpebrae superioris and the activation of the palpebral portion of the orbicularis oculi, not the full open and close.
The 100–120 Hz flicker produced by magnetic ballasts is associated with headaches and eyestrain. [8] Individuals with high critical flicker fusion threshold are particularly affected by light from fluorescent fixtures that have magnetic ballasts: their EEG alpha waves are markedly attenuated and they perform office tasks with greater speed ...
Sharp Galapagos 003SH [8] 2010-12-17 Japan Striped parallax barrier No No Sharp Galapagos 005SH [8] 2011-02-25 Japan Striped parallax barrier No No HTC EVO 3D [9] 2011-06-24 USA Parallax barrier Yes Yes LG Optimus 3D P920 aka LG Thrill 4G [10] 2011-07-07 Global Parallax barrier Yes Yes Sharp Aquos 006 SH [11] 2011-05-18 Japan Striped parallax ...
Woman covering her face because her right eye is twitching. When we experience an eye twitch, it is usually a fleeting event. When your right eye is twitching, it could be due to stress, fatigue ...
The glabellar reflex, also known as the "glabellar tap sign", is a primitive reflex elicited by repetitive tapping of the glabella — the smooth part of the forehead above the nose and between the eyebrows. [1]
Photosensitive epilepsy (PSE) is a form of epilepsy in which seizures are triggered by visual stimuli that form patterns in time or space, such as flashing lights, bold, regular patterns, or regular moving patterns. PSE affects approximately one in 4,000 people (5% of those with epilepsy).