Corneal Topography and Imaging — Flashcards

Flashcard 1: Corneal _____ is used to measure corneal curvature, shape, and thickness

Answer: topography

Flashcard 2: Specular microscopy is to assess the corneal _____

Answer: endothelium

Flashcard 3: Anterior segment _____ is used to assess different corneal layers

Answer: ocular coherence tomography

Flashcard 4: ICRS is used for the mx of _____ and low myopia.

Answer: keratoconus

Flashcard 5: _____ is a method of imaging the cornea by projecting a series of concentric rings of light on the anterior surface.

Answer: Corneal topography

Flashcard 6: Which stain is used to identify granular dystrophy of the cornea? _____

Answer: Masson's trichrome

Flashcard 7: The following result on Placido disk test will be seen in _____

Answer: keratoconus

Flashcard 8: The following result on Placido disk test will be seen in _____

Answer: corneal astigmatism

Flashcard 9: What are the common causes of interstitial keratitis? (Consider granulomatous, protozoal, and mycobacterial causes)

Answer: • Syphilis (most common cause) • Tuberculosis • Leprosy • Acanthamoeba • Cogan syndrome • Lyme disease

Extra: Clinical features of interstitial keratitis include a 'salmon patch' appearance (active stage) and 'ghost vessels' (healed stage). Cogan syndrome is a rare systemic disease characterized by interstitial keratitis and vestibuloauditory symptoms (vertigo, tinnitus, and sensorineural hearing loss).

Flashcard 10: Corneal thickness is best measured by a _____

Answer: pachymeter