A healthy eye requires the continuous production and drainage
of tears. Tears keep the eye moist, help wounds heal, and
protect against eye infection. Sufferers of dry eye have
one or both eyes producing fewer tears or lower quality tears.
This leads to an inability keep the surface
lubricated and comfortable. As we age, the glands around
eyes usually produce fewer tears. The wearing of contact lenses may also
contribute to dry eye disease.
Some symptoms of dry eye are as follows:
Scratchy or sandy feeling as if something is in the eye.
