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 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.
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