Tear Film (Lacrimal Film / Tear Layers)
Your tear film is a thin, layered coating that covers your eye. It has three layers: oil (lipid), water (aqueous), and mucus (mucin). Each layer serves an important purpose. A healthy tear film keeps your eyes comfortable, clear, and protected from infection.
Visual Guide
Tear Film (Lacrimal Film / Tear Layers)
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Structure & Components
- Keeps eyes lubricated and comfortable
- Protects eye surface from bacteria
- Provides clear vision
- Prevents eye irritation
- Essential for eye health
Functions & Physiology
- Normal tear production throughout the day
- Emotional tears in response to feelings
- Reflex tearing from irritation
- Basal tear production (constant)
- Part of normal eye protection
Key Points
- Use lubricating eye drops for dry eyes
- Warm compresses to improve tear production
- Frequent blinking
- Avoid dry environments
- Stay hydrated
Learn More About Eye Health
Understanding eye anatomy is the first step to protecting your vision. Our experts are here to answer any questions about eye health.
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