Marcus Gunn jaw-winking phenomenon due to relation between which cranial nerves
Correct Answer: III & V
Description: (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 505) *Marcus Gunn phenomenon (a.k.a Marcus Gunn jaw-Winking or Trigemino-oculomotor synkineses) *It is an autosomal-dominant condition with incomplete penetrance, in which nursing infants will have rhythmic upward jerking of their upper eyelid *This condition is characterized as a synkinesis: when two or more muscles that are independently innervated have either simultaneous or coordinated movements Marcus Gunn Jaw Winking Ptosis is a congenital ptosis associated with synkinetic movements of upper lid on masticating movements of the jaw. It is usually unilateral but rarely presents bilaterally. Affects males and females in equal propoion.
Category:
Ophthalmology
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