Dry eye occurs when the eye does not produce tears properly, or when the tears are not of the correct consistency and evaporate too quickly.
In addition, inflammation of the surface of the eye may occur along with dry eye. If left untreated, this condition can lead to pain, ulcers, or scars on the cornea, and some loss of vision. However, permanent loss of vision from dry eye is uncommon.
For all of the NEI information on this topic, please visit the following webpage:
Facts About Dry Eye
For more information from other health sites, please visit the following webpages:
MedlinePlus, Dry Eyes
MedlinePlus, Dry Eye Syndrome
University of Illinois Eye Center, Dry Eyes
The University of Michigan Kellogg Eye Center, Dry Eye Syndrome
American Optometric Association, Dry Eye
Mayo Clinic, Dry Eye