Ocular muscle involved in Marcus Gun jaw winking phenomenon is -
Congenital synkinetic ptosis (Marcus Gunn jaw winking ptosis). In this condition there occurs retraction of the ptotic lid with jaw movements i.e., with stimulation of ipsilateral pterygoid muscle. It is due to the mixing of the fibres of 5th and 3rd cranial nerves. Ref:AK Khurana 4thE pg356
Orbicularis oculi
Levator palpebrae
Medial rectus
Lateral rectus
Diseases of orbit, Lids and lacrimal apparatus