Which test finding has been associated with meibomian gland disease in dogs?

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Study for the ACVIM Small Animal Internal Medicine Exam to enhance your veterinary knowledge. Prepare with flashcards and multiple-choice questions, featuring hints and explanations. Ensure success in your exam journey!

Multiple Choice

Which test finding has been associated with meibomian gland disease in dogs?

Explanation:
Meibomian gland disease destabilizes the tear film by causing a deficient or altered lipid layer, leading to evaporative dry eye. The Schirmer tear test measures aqueous tear production by the lacrimal glands. While MGD is about the lipid component, chronic ocular surface inflammation or concurrent lacrimal gland dysfunction can occur, resulting in reduced aqueous tear production. Therefore, a decreased Schirmer tear test value has been associated with meibomian gland disease in dogs. Elevated tear osmolarity reflects dry eye in general but is not as specifically linked to MGD, and normal tear production would argue against concurrent aqueous deficiency.

Meibomian gland disease destabilizes the tear film by causing a deficient or altered lipid layer, leading to evaporative dry eye. The Schirmer tear test measures aqueous tear production by the lacrimal glands. While MGD is about the lipid component, chronic ocular surface inflammation or concurrent lacrimal gland dysfunction can occur, resulting in reduced aqueous tear production. Therefore, a decreased Schirmer tear test value has been associated with meibomian gland disease in dogs. Elevated tear osmolarity reflects dry eye in general but is not as specifically linked to MGD, and normal tear production would argue against concurrent aqueous deficiency.

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