• Corneal inflammation

  • 🍒Patients who use contact lenses are at increased risk of keratitis

  • 🍒Keratitis classically presents with what symptom triad?

  • Bacterial keratitis

    • Typically caused by foreign body → corneal abrasion → infection with commensals (also see Foreign body in the eye)

    Keratitis caused by foreign body (rust lesion at cornea)

    Keratitis caused by foreign body (rust lesion at cornea)

    • 🍒What is the overall management for bacterial keratitis?

  • HSV/VZV keratitis

    • Cold sores → HSV; treat with topical acyclovir for 5 days

      • Dendritic ulcer

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      • 🍒In HSV keratitis there is decreased corneal sensation

      • 🍒What is the management for HSV keratitis?

    • Shingles → varicella (Herpes Zoster opthalmicus); treat with PO acyclovir
      • Hutchinson’s sign; herpes zoster vesicle present on tip or side of the nose → suggestive of opthalmic nerve 1st trigeminal nerve involvement
        • 🍒What is Hutchinson’s sign and what does it indicate?
      • 🍒What is the management for VZV keratitis?

  • UV keratitis/Photokeratitis

    • 🍒Practice questions describing UV keratitis will typically involve someone who works on boats or in snow all day or have experienced a welding flash
    • 🍒Symptoms of photokeratitis appear after a latent period of 6-8 hours
    • 🍒What symptoms would you expect in photokeratitis/UV keratitis?
    • 🍒What would you expect to see on fluorescien for photokeratitis/UV keratitis
    • 🍒What is the prognosis of UV keratitis?
    • 🍒What is the management for UV keratitis?
    • 🍒Can you give anaesthetic eye drops in UV keratitis

  • Exposure keratopathy/keratitis

  • Sight threatening disorderacha