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.
But when weâre asleep, we donât blink. Rheum can build up along the eyelashes or in the corner of the eye. The presence of eye boogers isnât usually cause for alarm â everybody gets them. Dealing with crusties in the eyes is relatively easy. Adults and older children can wipe them away with clean fingers or a clean washcloth and water.