Eyes are Dry Underlying Cause
Tears protect the surface or the eye and keep the cornea clean, so that light can enter the eye. Tiny glands in the eye produce tears. Tears drain from the eye through a tiny passageway, and into the nose. This passageway is called the nasolacrimal duct.
Dry eyes is caused by decreased tear production, or increased evaporation of tears. Tear production normally decreases with age.
Causes of dry eyes include:
- Sun exposure
- Rheumatoid arthritis
- Sjogren's syndrome
Medications that can cause dry eyes include:
Continue to Eyes are Dry Anatomy
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