What is the most common corneal dystrophy that causes recurrent corneal erosions?

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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

What is the most common corneal dystrophy that causes recurrent corneal erosions?

Explanation:
The main idea is that epithelial basement membrane dystrophy causes recurrent corneal erosions. EBMD features abnormal, thickened epithelial basement membrane, which disrupts the adhesion of the corneal epithelium to the underlying stroma. This poor adhesion leads to repeated, painful erosions, especially upon waking or with blinking. On examination, EBMD often shows map-dot-fingerprint patterns on the corneal surface. The other dystrophies listed involve the stroma or endothelium and don’t classically present with recurrent epithelial erosions.

The main idea is that epithelial basement membrane dystrophy causes recurrent corneal erosions. EBMD features abnormal, thickened epithelial basement membrane, which disrupts the adhesion of the corneal epithelium to the underlying stroma. This poor adhesion leads to repeated, painful erosions, especially upon waking or with blinking. On examination, EBMD often shows map-dot-fingerprint patterns on the corneal surface. The other dystrophies listed involve the stroma or endothelium and don’t classically present with recurrent epithelial erosions.

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