A 62-Year-Old Man Comes to the Office Reporting Double Vision

A 62-year-old man comes to the office reporting double vision.  He first noticed mild difficulty focusing his eyes about 3 weeks ago, and his symptoms have progressively worsened.  The patient's other medical problems include metastatic prostate cancer.  On neurologic examination, he is unable to adduct his left eye, and stimulation of the left cornea does not elicit a corneal reflex.  A lesion involving which of the following anatomical structures is most likely responsible for this patient's symptoms?

A) Foramen lacerum
B) Foramen ovale
C) Foramen rotundum
D) Inferior orbital fissure
E) Optic canal
F) Superior orbital fissure

Correct Answer:

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