Orbital apex syndrome involves
Orbital apex syndrome is a complication of a paranasal sinus infection. Superior orbital fissure syndrome along with the involvement of maxillary division of trigeminal nerve and optic nerve is known as orbital apex syndrome. In superior orbital fissure syndrome, there is progressive paralysis of abducent, oculomotor and trochlear nerves. Ref: Diseases of ENT by Dhingra 6th edition Pgno : 200
Ophthalmic division of trigeminal nerve
Olfactory nerve
Maxillary division of trigeminal nerve
Mandibular division of trigeminal nerve
Ear