Ophthalmology Type IV hypersensitivity to Mycobacterium tuberculosis antigen may manifest as: A Marginal Keratitis B Giant cell aeritis C Polyaeritis nodosa D Phlyctenular Keratoconjunctivitis 💡 Explanation Type IV hypersensitivity to Mycobacterium tuberculosis antigen may manifest as: ✓ Correct Answer: D. Phlyctenular Keratoconjunctivitis