Notes and References. 1  U.S. Senate: Reference Home > Glossary > Christmas tree bill. 2  Lardner, George (1966) The Day Congress Played Santa: A Look at the Christmas Tree Bill, Washington Post, 25 December, p. A1, A10. 3  Shribman, David (1983) It Began as a Rather Ordinary Piece of Legislation, New York Times, 9 November, p. A22.
When the individual is awake, blinking of the eyelid causes rheum to be washed away with tears via the nasolacrimal duct. The absence of this action during sleep, however, results in a small amount of dry rheum accumulating in corners of the eye, most notably in children.
There are many causes of eye discharge, ranging from infections to allergic reactions to eye injury. Irritation of the eyes is a frequent cause of watery eye discharge. Allergic reactions can cause itchy, watery eyes. Both allergies and infections cause pinkeye, or conjunctivitis. Eye discharge associated with infections is usually accompanied by other symptoms including redness (bloodshot appearance), burning, blurred vision, or eye pain. Photophobia (sensitivity to light) can be associated with eye infections.