Is trachoma more associated with entropion or ectropion?

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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

Is trachoma more associated with entropion or ectropion?

Explanation:
Trachoma causes scarring of the palpebral conjunctiva and eyelid margin, which pulls the lid inward toward the globe. This inward turning is called entropion, and it brings the eyelashes into contact with the cornea (trichiasis), leading to corneal irritation, ulcers, and scarring that can drive vision loss. Ectropion, by contrast, is the outward turning of the lid, usually from lid laxity or facial changes, and is not the typical lid deformity seen with trachomatous scarring. Therefore, trachoma is more closely associated with entropion.

Trachoma causes scarring of the palpebral conjunctiva and eyelid margin, which pulls the lid inward toward the globe. This inward turning is called entropion, and it brings the eyelashes into contact with the cornea (trichiasis), leading to corneal irritation, ulcers, and scarring that can drive vision loss. Ectropion, by contrast, is the outward turning of the lid, usually from lid laxity or facial changes, and is not the typical lid deformity seen with trachomatous scarring. Therefore, trachoma is more closely associated with entropion.

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