A 58-year-old man with type 2 diabetes presents with the acute onset of double vision. Examination reveals a deficit of the third cranial nerve. A third-nerve palsy associated with diabetes mellitus is usually characterized by which of the following?

a. Poor pupillodilation

b. Poor pupilloconstriction

c. Sparing of pupillary function

d. Inversion of the affected eye

e. Upward deviation of the affected eye

the answer is below…

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