Eyeblinks regulate the amount and temporal binning of information entering the nervous system.

“Now this should make perfect sense that these shutters on the front of your eyes, they aren't just there for winking and they aren't just there for cosmetic purposes. They are there to regulate the amount of information going into your nervous system and they're there to regulate how long you are bringing information into your nervous system and in what bins, how widely or finely you are binning time is set by how often you blink.”