Image of the Week: Thin Film on the Cornea of an Elderly Woman

An 85-year-old woman is admitted to the hospital for management of chronic obstructive pulmonary disease. She is treated with bronchodilators, oral glucocorticoids, antibiotics, and noninvasive ventilation for 7 days. A novel thin white film appears on the patient’s cornea. It does not slough with swabbing; the patient is otherwise asymptomatic.

Which of the following histories is most consistent with these findings? Learn more about this case, take the quiz, and join the conversation on Figure 1.