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Inverse Marcus Gunn phenomenon is a rare condition [5] that causes the eyelid to fall upon opening of the mouth. In this case, trigeminal innervation to the pterygoid muscles of the jaw is associated with an inhibition of the branch of the oculomotor nerve to the levator palpebrae superioris, as opposed to stimulation in Marcus Gunn jaw-winking.
Marcus Gunn pupil: Robert Marcus Gunn: ophthalmology, neurology: severe retinal disease, lesion of optic nerve anterior to chiasm: Gunn's pupillary phenomenon at Who Named It? Relative pupil dilatation when light swings to the affected side Markle's sign: George Bushar Markle IV: surgery: appendicitis (needed) RLQ pain on dropping from standing ...
A relative afferent pupillary defect (RAPD), also known as a Marcus Gunn pupil (after Robert Marcus Gunn), is a medical sign observed during the swinging-flashlight test [1] whereupon the patient's pupils excessively dilate when a bright light is swung from the unaffected eye to the affected eye. The affected eye still senses the light and ...
She shares videos relating to her condition and has started a Facebook group for people suffering with Marcus Gunn Phenomenon. The group now has over 2,000 members. Mandy, who lives in Long Beach ...
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Marcus Gunn phenomenon (external pterygoid-levator synkinesis) This page was last edited on 28 December 2019, at 11:22 (UTC). Text is available under the Creative ...
For example, myogenic ptosis results from a direct injury to the levator muscle and/or Müller's muscle. On the other hand, neurogenic ptosis is caused by closed head injuries or traumatically introduced neurotoxin (wasp/bee/snake venom) or botulinum toxin due to the effect of those factors on the CNIII or the sympathetic pathway.
Facial synkinesis is a common sequela to Idiopathic Facial Nerve Paralysis, also called Bell's Palsy or Facial Palsy. [2] Bell's Palsy, which is thought to occur due to a viral reactivation which can lead (through unknown mechanisms) to diffuse axon demyelination and degeneration of the seventh cranial nerve, results in a hemifacial paralysis due to non-functionality of the nerve.