Ophthalmology Phlyctenular keratoconjunctivitis is due to hypersensitivity to which of the following allergens A Pollen B Chemicals C Mycobacterium tuberculosis proteins D Animal fur 💡 Explanation Phlyctenular keratoconjunctivitis is due to hypersensitivity to which of the following allergens ✓ Correct Answer: C. Mycobacterium tuberculosis proteins