Image of the Week: A thin white film on the cornea after COPD diagnosis

An 85-year-old woman is admitted to the hospital with COPD. She is treated with bronchodilators, oral glucocorticoids, antibiotics, and non-invasive ventilation for 7 days. A new thin white film appears on the patient’s cornea. It does not slough with swabbing, and the patient is asymptomatic. What is the most likely diagnosis? Learn more about this case, take the quiz, and join the conversation on Figure 1.