If you have sandy, gritty irritated eyes or burning eyes, and these symptoms get worse as the day goes on, you’re probably one of millions with the problem eye doctors call “dry eye.”
Thera Tears is a gentle lubricant that matches your natural tears and provides relief for your "dry eye."
Why Does Your Eye Need Tears Anyway?
Did you ever wonder why the eye is covered by tears? It’s because the delicate living tissue on the surface of your eye has no blood supply—it has a tear supply instead. So rather than getting important things like oxygen and electrolytes from the blood, your eye surface gets them from the watery layer of your tears.
What Happens In Dry Eye?
In dry eye the tear film on the eye surface loses water because of either decreased tear production or increased evaporation. And as evaporation continues throughout the day, your eyes feel drier and drier.
What Causes Dry Eye?
The most common cause of dry eye is aging. As we get older we produce fewer tears, and evaporation increases. Other common causes include contact lens wear, sun, wind, dry air, reading, computer use and certain medications. Dry eye is seen with certain diseases such as Sjögren’s syndrome as well.