A 25-Year-Old Resident Presents to the Emergency Department with Severe

Multiple Choice

A 25-year-old resident presents to the emergency department with severe eye pain. She has not been home for 2 days and has had the current pair of contacts continuously in her eyes for 6 weeks. What major protective mechanism of the eye could not keep up with such contaminated contacts, resulting in infection?

A) Lysozyme
B) B cells
C) NK cells
D) T cells
E) Teichoic acids