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Is Eye Water Clean?

Published in Eye Health 2 mins read

Yes, eye water, which we commonly call tears, is generally considered clean.

Understanding Eye Water (Tears)

Tears are produced by the lacrimal glands located above each eye. The primary function of tears is to keep the surface of the eye moist, lubricated, and protected. These tears contain a special mix of substances, which plays a critical role in maintaining eye health. According to reference material provided, the eyes regularly clean themselves using tears during blinking. This natural process helps wash away debris and keeps the eye surface clear.

Key Components of Tears:

  • Water: The primary component of tears, which provides hydration to the eye surface.
  • Electrolytes: Salts like sodium and potassium which contribute to maintaining the osmotic balance of the eye.
  • Proteins and Lipids: These include antibodies, enzymes, and oils that help fight infection and prevent tear evaporation.

How Tears Clean the Eyes:

  1. Lubrication: Tears coat the eye, reducing friction during blinking.
  2. Washing Away Debris: Every blink sweeps away dust, allergens, and other particles from the eye surface.
  3. Fighting Infection: Tears contain antimicrobial substances that help protect the eye from harmful pathogens.
  4. Maintaining Smooth Surface: By keeping the surface moist, tears help maintain clear vision.


Component Function
Water Hydration
Electrolytes Osmotic Balance
Proteins & Lipids Protection & Lubrication


Based on the reference material, the tear fluid in the eyes consists of a special composition, which makes it safe for the surface of the eye. This means that the fluid, designed to wash the eyes, is inherently clean, helping to eliminate irritants and prevent infections.

In summary, tear fluid is not only clean, but is necessary for maintaining eye health. It serves vital functions that ensure proper eye lubrication and cleanliness through natural processes.