Phlyctenular Keratoconjunctivitis

Phlyctenular Keratoconjunctivitis
SYMPTOMS Discomfort | Photophobia
SIGNS White nodule on cornea and/or conjunctiva with associated engorged vessels | Conjunctival injection | Possible corneal scarring
WORK-UP Thorough history. Slit lamp examination
TREATMENT Combination antibiotic/steroid drop: Tobradex 1 gtt qid | Zylet 1 gtt qid
FOLLOW-UP Every few days during treatment
ADDITIONAL LAB | TESTS Consider tuberculosis testing: skin test (PPD) | blood test (IGRA)
ETIOLOGY Hypersensitivity reaction to an infectious agent, such as S. aureus or mycobacterium tuberculosis
DIFFERENTIAL DX Pinguecula | Pterygium | Episcleritis | Corneal ulcer | Salzmann nodular degeneration