What is the primary function of the meibomian glands?

Prepare for the JCAT Independent Practice Exam! Study with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

The primary function of the meibomian glands is to produce oil for lubrication. These glands are located in the upper and lower eyelids and secrete a lipid-rich substance that forms the outer layer of the tear film. This oily layer is crucial because it prevents the evaporation of the more watery components of tears, thereby maintaining proper eye moisture and comfort. This lubrication helps to create a smooth surface on the eye, which is essential for clear vision and comfort during blinking and eye movement.

The oil secretion helps to stabilize the tear film, reducing dryness and irritation that can occur if the eyes do not remain adequately lubricated. Understanding the role of the meibomian glands highlights their importance in the overall health of the eyes, particularly in maintaining a balanced tear composition for optimal ocular function.

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