Welcome to our decision guide on persistent and long standing dryness of the eyes and/or mouth, a condition often called "SICCA syndrome." The name comes from the Latin word, "siccus" which means "dry."

Brief symptoms of eye dryness may be due to air blowing near your eyes, an environment with dry air (as with indoor heating), smoke or dust exposure. Dryness can complicate other eye conditions, such as eyelid disorders and bulging of the eyes (as may occur with an overactive thyroid). Temporary dryness of the mouth may accompany nervousness, anxiety and breathing through the mouth (as many people do when they sleep). Also many medications can make the mouth dry.

This guide will cover the most common reason for dry eyes and dry mouth. While these symptoms are more common among persons who are older, they are not inevitable; while tear production may decline with advancing age, symptoms are often not solely related to aging. In fact, plenty of elderly people have perfectly normal tear and saliva production.

Please keep in mind that this information cannot replace a face-to-face evaluation with your own health care provider. It is meant to provide helpful information while you are awaiting further evaluation, or to supplement what you may have already learned after evaluation with your doctors.

Click here to start with some general information.