Question

In a patient with meningitis, irritation to which CN could cause photophobia?

A. III
B. IV
C. V
D. VI

Answer 1

In meningitis, irritation to the optic nerve (CN II) can cause photophobia. The inflammation of the meninges can irritate the optic nerve, leading to light sensitivity.

Step-by-step explanation:

In a patient with meningitis, irritation to cranial nerve II (the optic nerve) can cause photophobia, which is a sensitivity to light. When the meninges are inflamed, as occurs with meningitis, the optic nerve may also become irritated due to its proximity to the meninges. Since the optic nerve is responsible for transmitting visual information from the eyes to the brain, inflammation can lead to symptoms like photophobia. Therefore, the correct answer is A. CN II.