![]() Tears bathe the eye's surface to keep it moist and wash away dust, debris and microorganisms that could damage the cornea and lead to an eye infection.Ī normal tear film consists of three important components:Īn oily (lipid) component produced by meibomian glands in the eyelidsĪ watery (aqueous) component produced by lacrimal glands located behind the outer aspect of the upper eyelids.Ī mucous-like (mucin) component produced by goblet cells in the conjunctiva that covers the white of the eye (sclera).Įach component of the tear film serves a critical purpose. ![]() ![]() An adequate and consistent layer of tears on the surface of the eye is essential to keep your eyes healthy, comfortable, and seeing well. Dry eyes are a chronic lack of lubrication and moisture on the surface of the eye.
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