Marginal Keratitis

Staphylococcal Marginal Keratitis

Clinical Features

  • Symptoms: irritation, red eye, photophobia nad foreign body sensation.
  • Signs:
    • Peripheral corneal infiltrates and/or ulceration
    • Usually parallel to limbus, separated by a clear corneal zone
    • Presents with marked conjunctival injection
    • Occurs in middle-aged patients but may occur at any age
    • Commonly associated with staphylococcal blepharoconjunctivitis, rosacea or phlyctenulosis


  • Directed at eliminating the bacterial colonization from the external ocular surface:
    • Lid hygiene
    • Antibiotic drops or ointment
  • Topical steroids are sometimes required to treat acute infection and inflammation.