A 40-year-old man presents to the clinic with a 1-week history of progressively worsening visual acuity in his left eye. He has not had blood work performed in many years. He is enrolled in a methadone program.

Which of the following is most likely to be seen in this patient?
A) Blood glucose of 440 mg/dL
B) Blood pressure of 200/100
C) Bone-spicule pigmentation
D) Cowdry bodies
E) Owl eyes
