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Myokymia.

Myokymia.

Myokymia

Typically

Eyelid Myokymia (kymatism) | Annoying eyelash spasms & causes

Myokymia is a disease associated with falling and jumping activities. Where there appears to be a sudden over-activity of the muscles in the affected region. This results in a person repeatedly performing the same motion, generally around the face. The condition can be controlled by physical therapy (PT) of the affected region and/or use of nitroglycerin or muscle relaxant drugs. Offspring with Myokymia can have a variety of facial dysmorphisms.

Medications like topiramate, clozapine, gold salts, and flunarizine can trigger eyelid myokymia. Nonetheless, medication-induced myokymia is uncommon.[9] Other reported causes include multiple sclerosis, autoimmune diseases, and brainstem pathology such as pontine glioma.[4] (Source: www.ncbi.nlm.nih.gov)

Facial

Eyelid Myokymia (kymatism) | Annoying eyelash spasms & causes

Myokymia is a condition which makes it difficult to smile, laugh, and frown. It is a non-medical term used when a person cannot control the muscles at the corners of their mouth. Producing an inability to form a quick smile, raise the corners of their mouth, or pull them down in an appropriate way.

In contrast, facial myokymia is a fine rippling of muscles on one side of the face. And may reflect an underlying tumor in the brainstem. (Typically a brainstem glioma), loss of myelin in the brainstem (associated with multiple sclerosis). Or in the recovery stage of Miller-Fisher syndrome, a variant of Guillain–Barré syndrome. An inflammatory polyneuropathy that may affect the facial nerve. (Source: en.wikipedia.org)

Nerve

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Facial nerve symptoms often result in the sensation that certain facial expressions aren’t matching the emotions. Without the myokymia, the sadness of a smile would be hard to recognize. Facial myokymia is one of the third most common nerve disorders in America. It impacts about two million people in the United States.

Consisting of involuntary fine undulating contractions across the striated muscle, the pathophysiology of eyelid myokymia is not well understood. The contractions are nonsynchronous semirhythmic discharges of motor units discharging at a rate of 3-8 Hz. The discharges have intervals of 100-200 ms between individual motor bursts. The contractions are transient and intermittent. The focus of irritation is most likely the nerve fibers within the muscle. Pontine dysfunction in the region of the facial nerve nucleus also has been suggested. Possible precipitating factors include stress, fatigue, and excessive caffeine or alcohol intake. (Source: emedicine.medscape.com)

Caffeine

Myokymia is a rare neurological phenomenon that has been believed to lead to uncontrollable facial movements, or “jerks”. Myokymia can be caused by caffeine, drugs. Or lack of sleep in some people leading to unwanted and spontaneous jerks that the individual cannot control. Myokymia typically first presents during sleep in the form of nodding during sleep or restlessness, but it may also impact those who are awake.

Are red eyes a coronavirus symptom? (Source: www.allaboutvision.com)

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