Which conjunctival finding is associated with Vitamin A deficiency?

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Study for the NBEO Ocular Disease Part 1 Test. Use flashcards and multiple choice questions, each with hints and explanations, to prepare for your exam! Get ready for your success!

Multiple Choice

Which conjunctival finding is associated with Vitamin A deficiency?

Explanation:
Vitamin A deficiency disrupts the normal conjunctival epithelium, causing keratinization that appears as Bitot's spots—foamy, white patches on the bulbar conjunctiva. These spots are a classic ocular sign of xerophthalmia and signal insufficient vitamin A, often alongside or preceding night blindness. The other findings reflect different processes: pinguecula are benign, UV-related yellow patches at the limbus; conjunctival injection is just redness from irritation or inflammation; and follicular conjunctivitis shows follicles from infections or allergies. Bitot's spots are the best indicator of vitamin A deficiency in the conjunctiva.

Vitamin A deficiency disrupts the normal conjunctival epithelium, causing keratinization that appears as Bitot's spots—foamy, white patches on the bulbar conjunctiva. These spots are a classic ocular sign of xerophthalmia and signal insufficient vitamin A, often alongside or preceding night blindness. The other findings reflect different processes: pinguecula are benign, UV-related yellow patches at the limbus; conjunctival injection is just redness from irritation or inflammation; and follicular conjunctivitis shows follicles from infections or allergies. Bitot's spots are the best indicator of vitamin A deficiency in the conjunctiva.

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