Your eyes normally make small amounts of tears all day long. These tears play an important role in keeping your eyes healthy and your vision clear. Tears lubricate the eye’s surface, wash away debris, provide a smooth surface to help keep your vision clear and also contain natural antibiotics that keep your eyes safe from germs that might cause infections.

Tears coat the eye in a smooth film made up of three separate layers, and each layer is made by a different part of the eye. For the tear film to do its job, all three layers have to be in their proper places in the correct amounts, like a recipe. If any layer is missing or abnormal - which can happen for a number of reasons - the tear film becomes disorganized and no longer soothes the eye like it should.

When that happens, the symptoms of dry eye syndrome occur. The front surface of the eye gets dried out (causing stickiness) and gets inflamed (causing stinging and burning). For some people, the stinging, burning and redness may seem like little more than a nuisance, but in fact, if left untreated, dry eye syndrome can lead to serious eye problems, including blindness. Inflammation of the front surface of the eye increases the risk of some infections, and can also lead to scarring. Once scarring occurs, permanent loss of sight can occur.

If you have symptoms of dry eye syndrome, ask your doctor for a dry eye evaluation. Treatments are available to halt the disease and save your sight.

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