Board Certified Ophthalmologist Cornea and External Disease Questions and Answers Flashcards
6 cards from real Board Certified Ophthalmologist practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Board Certified Ophthalmologist Cornea and External Disease Questions and Answers flashcards as text
Which corneal dystrophy is characterized by recurrent erosions beginning in the first decade of life and demonstrates map-dot-fingerprint patterns on slit lamp examination?
Answer: Epithelial basement membrane dystrophy
Epithelial basement membrane dystrophy (EBMD/Cogan's) is the most common anterior corneal dystrophy, characterized by map-like gray patches, microcysts (dots), and fingerprint lines.
A patient with a history of herpes simplex keratitis develops a deep stromal infiltrate without epithelial defect. What is the recommended first-line treatment?
Answer: Topical corticosteroid with oral antiviral prophylaxis
Herpetic stromal keratitis without epithelial involvement is treated with topical corticosteroids to suppress the immune-mediated inflammation, combined with oral antiviral prophylaxis to prevent viral reactivation.
Which staining pattern on rose bengal is most characteristic of keratoconjunctivitis sicca?
Answer: Interpalpebral conjunctival and corneal staining
Rose bengal stains devitalized and unprotected epithelial cells, producing a characteristic interpalpebral pattern in dry eye disease where tear film exposure is greatest.
A corneal transplant patient develops a Khodadoust line 14 months postoperatively. What does this finding indicate?
Answer: Endothelial rejection
A Khodadoust line is a linear endothelial precipitate that represents endothelial graft rejection, the most sight-threatening form of corneal transplant rejection.
What is the most appropriate initial management for a moderate chemical alkali burn to the eye with limbal ischemia involving 4 clock hours?
Answer: Copious irrigation followed by topical steroids and ascorbate
Immediate copious irrigation is the critical first step in chemical burns, followed by topical steroids to reduce inflammation and ascorbate to promote collagen synthesis and prevent corneal melting.
Which finding on confocal microscopy is pathognomonic for Acanthamoeba keratitis?
Answer: Hyper-reflective round double-walled cysts
Confocal microscopy reveals characteristic hyper-reflective, double-walled round cysts of Acanthamoeba in the corneal stroma, allowing rapid noninvasive diagnosis.