Orbital apex syndrome involves? – ENT MCQ

Orbital apex syndrome involves?
A. Olfactory nerve
B. Ophthalmic division of trigeminal nerve
C. Maxillary division of trigeminal nerve
D. Mandibular division of trigeminal nerve

Correct answer : C. Maxillary division of trigeminal nerve

nerves of the orbitNerves of the orbit

  • Orbital apex syndrome is a complication of paranasal sinus infection.
  • Superior orbital fissure syndrome along with 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 Ear, Nose and Throat by P.L. Dhingra, 5th edition, p213.
Image credits: https://en.wikipedia.org/wiki/File:Gray777.png

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