Viral Keratitis — Flashcards

Flashcard 1: A hallmark feature of viral keratitis is decreased _____.

Answer: corneal sensation

Extra: Decreased corneal sensation (hypesthesia) is a classic finding in Herpes Simplex (HSV) and Herpes Zoster (HZV) keratitis. Note: While sensation loss is a hallmark, the **dendritic ulcer** is considered the pathognomonic sign for HSV epithelial keratitis.

Flashcard 2: Shield ulcers, vernal plaques, and pseudogerontoxon are signs of _____ involvement in Vernal Keratoconjunctivitis (VKC).

Answer: Corneal

Flashcard 3: Dendritic ulcer is a feature of _____ herpes simplex

Answer: primary and secondary active (primary/secondary)

Flashcard 4: Fine/Coarse epithelial punctate keratitis is a feature of _____ herpes simplex

Answer: primary and secondary active (primary/secondary)

Flashcard 5: Pseudo-dendritic or micro-dendritic ulcers are seen in _____ keratitis

Answer: herpes zoster

Flashcard 6: Neurotrophic keratitis is a feature of _____ herpes simplex

Answer: secondary (primary/secondary)

Flashcard 7: _____ or Dendritic corneal ulcers are seen in Fluorescein slit lamp exam of Keratoconjunctivitis from HSV-1

Answer: Geographic

Flashcard 8: Most common cause of neurotrophic keratopathy is _____

Answer: Herpes simplex virus (HSV)

Extra: While both Herpes Simplex Virus (HSV) and Varicella Zoster Virus (VZV/Herpes Zoster) are common causes of neurotrophic keratopathy, HSV is generally considered the most common cause. Neurotrophic keratopathy results from damage to the trigeminal nerve (CN V1), leading to loss of corneal sensation and subsequent degenerative changes.

Flashcard 9: Which stain is used to identify granular dystrophy of the cornea? _____

Answer: Masson's trichrome

Flashcard 10: The following result on Placido disk test will be seen in _____

Answer: keratoconus