Blinking

"Blink" redirects here. For other uses, see Blink (disambiguation).

Blinking is something that the body does. It is a fast closing and then reopening of the eyelids. It is semi-autonomic, meaning the person doesn't have to think about blinking to do it. People blink to keep the eyes wet by spreading water from the tear ducts around the eyes.^[1] Blinking can also be used to spread feeling, in body language.

A human eye blinking in slow-motion.