How Fast Do We Blink ?

fast blink

Blinking is a reflex involving rapid closing and opening of the eyelid. We blink in order to lubricate the eyeballs (it helps in spreading tears produced in the eyes over the eyeballs) and also remove irritants and debris from the eyes. 

If most people blink about 15-20 times in a minute when they are awake, that would be about 28,800 times a day! This may seem a lot but it is very necessary to avoid dryness, as the eyes have to stay moist and lubricated.