Diseases of the Cornea — Flashcards

Flashcard 91: Pannus on the superior limbus is a _____ sign of trachoma

Answer: corneal

Flashcard 92: Hypopyon is thick and immobile in _____ corneal ulcer

Answer: fungal

Flashcard 93: Bullous keratopathy will present with more symptoms in the _____ time

Answer: morning

Flashcard 94: Shield ulcers, vernal plaques, and pseudogerontoxon are signs of _____ involvement in Vernal Keratoconjunctivitis (VKC).

Answer: Corneal

Flashcard 95: _____ spp. can cause corneal perforation in 48 hours.

Answer: Pseudomonas

Flashcard 96: _____ is the treatment of choice for acanthamoeba keratitis.

Answer: Polyhexamethyl biguanide (PHMB)

Flashcard 97: Band-shaped keratopathy is _____ deposition on the cornea in the form of a band.

Answer: calcium

Flashcard 98: Ring lesions (stromal infiltrate) is seen in _____ keratitis.

Answer: acanthamoeba

Flashcard 99: 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 100: Keratoconjunctivitis sicca is due to the deficiency of the _____ layer of the tear film.

Answer: aqueous