A patient with ptosis presents with retraction of the ptotic eye lid on chewing. This represents-: (A) Marcus Gunn Jaw winking syndrome, (B) Third nerve misdirection syndrome, (C) Abducent palsy, (D) Occulomotor palsy
Answer is A. *Congenital synkinetic ptosis (Marcus Gunn jaw- winking ptosis ) is characterized by retracted of the ptotic lid with jaw movement, i.e. with stimulation of ipsilateral pterygoid muscle. Ref: Khurana 7th/e p.395