Myokymia miasms

Myokymia is an Peripheral Nervous system Entity, presents with involuntary, spontaneous, localized quivering of a few muscles which are insufficient to move a joint.
One type is superior oblique myokymia.
Myokymia is commonly used to describe an involuntary eyelid muscle contraction, typically involving the lower eyelid or less often the upper eyelid.
Facial myokymia is a fine rippling of muscles on one side of the face and may reflect
- Underlying tumor in the brainstem (brainstem glioma),
- Loss of myelin in the brainstem (associated with MS)
- Recovery stage of Miller-Fisher syndrome

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