A 67-Year-Old Man Comes to the Office Due to a Persistent

A 67-year-old man comes to the office due to a persistent headache and pain in the jaw when chewing food.  For the past 2 months, he has been unable to eat "tough foods like steak because the pain makes it take too long to chew them."  Medical history is notable for hypertension, type 2 diabetes mellitus, and hyperlipidemia.  Blood pressure is 130/70 mm Hg, and pulse is 76/min and regular.  Physical examination is unremarkable.  Appropriate therapy is immediately started, and an arterial biopsy is performed.  Histopathology shows multinuclear giant cells and internal elastic membrane fragmentation.  Prompt institution of therapy in this patient most likely reduces the risk of which of the following complications?

A) Angle-closure glaucoma
B) Ischemic optic neuropathy
C) Proliferative retinopathy
D) Retinal detachment
E) Retinal vein occlusion
F) Vitreous hemorrhage

Correct Answer:

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