Tearing up isn’t so bad after all.
Tears literally enable us to see. They lubricate our eyeballs and eyelids, thus preventing our eyes from dehydrating.
They also provide a smooth surface for refracting light, supply oxygen, and are a vital component of the ocular defense system that protects against a range of pathogens. Below we’ll delve into the composition and types of tears, and further explain why they are so beneficial to our physical and emotional well-being.
Structure of Tears
Tears are made up of three layers: lipids, aqueous and mucous.
The lipid layer is the outermost layer and prevents the evaporation of tears. The lipids are produced by tiny glands in the eyelids called the meibomian glands.
The aqueous layer, which is the middle layer, makes up 95％ of our tears. This layer supplies nutrients to the cornea prevents infection and heal ocular damage. This layer is effectively made up of water and is produced by the lacrimal gland.
The mucous layer is the one closest to the eye. It coats the cornea and provides a level platform that allows for an even distribution of the tear film over the eye. This layer is produced by even smaller glands called goblet cells.
Tears are invaluable for clear vision, protecting your eyes, flushing out irritants, and soothing emotions.
If you feel that your eyes are not as comfortable or your vision is not as clear as usual, contact our Patient Care Lines: (+632) 7-368 5238 l (+63) 917 862 7454 l (+63) 921 217 0517. Talk to us about how we can help you maintain or gain healthy vision.