Cool Quiz! Trivia, Quizzes, Puzzles, Jokes, Useless Knowledge, FUN!

 Search Cool Quiz!
 
 Advanced Search »

Trivia Quizzes Puzzles Humor Fun Pages Connect Make a Quiz!Message BoardsSend This to a Friend!View Your Profile

That Explains It Tell a Friend!
Tell a Friend

Why do we blink our eyes?
Why do we blink our eyes?

To oil, lube, and filter the eyes.

Blinking, as opposed to batting, our eyes automatically supplies two forms of moisture to our eyes, to keep them from drying out, and to keep foreign matter from entering and irritating our eyes. Eyelids themselves, our built-in "wind-shield wipers," are merely folds of skin, controlled by muscles capable of expanding and contracting so rapidly, that blinking does not impair our vision. Mother Nature lined the rims of our eyelids with 20-30 sebaceous, oil-producing glands, which are located between our eyelashes, and are invisible to the naked eye. Blinking automatically coats the eyelid and eyelashes with the lubricant it secretes, to prevent them from drying out.

Blinking also protects the eye from dryness by irrigating, not by irritating, the eye, The eyelid, through suction, automatically draws the fluid we cry with from the well we refer to as the tear duct over the eyeball, to irrigate, and to moisturize the eye. The process is similar to the manner in which the farmer uses water to irrigate his crops during a dry spell.

Yet another benefit of blinking, is to shield the eye from foreign bodies. Our eyelashes, short, curved, hairs, attached to the eyelids, serve as dust-catchers, as the blinking reflex causes them automatically to lower, when exposed to harsh elements. Nature endowed the camel with extraordinarily long, curly, eyelashes, to protect his eyes from sudden sandstorms in the desert. Incidentally, the "camel eyelash" look is one many women attempt to duplicate by using an eyelash curler! Eyebrows, by the way, also serve their purpose, as they catch the run-off perspiration produces.

View Another Question?

More Trivia Fun!
» How come we have two eyes but only see one of everything?
» How come tears come out of our eyes when we cry?
» Why do we laugh?

Join Cool Quiz and Win Prizes!JOIN COOL QUIZ!

Login (your email)


Password (forget?)

Featured Trivia
Phobias - What are you afraid of?
What is a BOOGER made of?
Smileys and E-mail Shorthand
What do you call a group of?
Unusual
U.S. Town Names
More...

Privacy Policy | Terms of Use | Media Kit | About Us | Make Us Your Homepage