Problem:
A 35-year-old man with no PMH is admitted to the primary care clinic with eye problems for the last 5 days. He stated that 8 days ago, he had upper respiratory symptoms, including a runny, stuffy nose, tearing, and throat pain. His symptoms resolved a few days later, but then he started developing problems in his left eye. He states that his left eye has felt itchy, swollen, and red for the last 5 days and has had a persistent watery discharge. He denies any pain in the eye, vision problems, or problems with pupillary reaction. The patient's temperature = 98.3 degrees F, HR = 80, RR = 16, and BP = 110/70. A physical exam of the eye reveals the picture shown below. Which of the following is the most likely cause of his eye problems? A. Adenovirus B. Herpes zoster C. S. aureus D. Chlamydia