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: _____ is mainly used as a corneal patch to seal acute corneal perforations

Answer: Cyanoacrylate glue

Flashcard 95: _____ is the treatment of choice for acanthamoeba keratitis.

Answer: Polyhexamethyl biguanide (PHMB)

Flashcard 96: _____ spp. can cause corneal perforation in 48 hours.

Answer: Pseudomonas

Flashcard 97: 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 98: Ring lesions (stromal infiltrate) is seen in _____ keratitis.

Answer: acanthamoeba

Flashcard 99: Band-shaped keratopathy is _____ deposition on the cornea in the form of a band.

Answer: calcium

Flashcard 100: Which stain is used to identify avellino dystrophy of the cornea?_____

Answer: Congo-red and Masson's trichrome