Why an eye blinks.?

Answer 1

Otherwise your eye will go dry.

Answer 2

Our blink rate reflects psychological arousal in the manner of a polygraph test. The normal, resting blink rate of a human being is 20 closures per minute, with the average blink lasting one quarter of a second,Significantly faster rates may reflect emotional stress......

Eye-blinking is another well-known primate movement. The moment you have the least little bit of stress, the eyelids blink

Answer 3

It is a natural phenomena which is highly regulated by one of a cranial nerves in our body, called Occulomotor nerve. Blinking response is a protective reflex that, keeps your eye surface clean,moist and free of injury.
Individuals may lose this protective response after a head injury and other brain related injuries.
Lose of this response if, untreated will lead to blindness.
Regards,

Answer 4

it blinks to keep the eyes wet

Answer 5

To wash away any pollutants that settle on the outer surface of the eye (conjuctiva), to give a little rest to the eye lids and to rest the eye and optic nerve too.

Answer 6

In many animals, including humans, eyelids wipe the eye and prevent dehydration. They spread tears on the eyes, which contains substances which help fight bacterial infection as part of the immune system.

Answer 7

isn't it because when you blink, your eyelids basically lubricate your eye, to keep it moist. if you didn't blink your eye would become all dry, and itchy.

Answer 8

our eye ball needs to clean and wet every second so that our eye blinks every second.

Answer 9

to keep our eye moist otherwise they ll get dry n it removes forgn partical too

Answer 10

so people have time to get their wedgies right