2007-01-19 00:14:01 · 16 answers · asked by harikuttan 2 in Science & Mathematics ➔ Medicine
TEARS...............
2007-01-20 19:37:49 · answer #1 · answered by Anonymous · 0⤊ 2⤋
Blinking is a physiological phenomenon.normally the eyes are covered by three layers of fluid,which we call the tear film.the tear film consists of three layers ,the innermost layer is called the" mucus layer ",the middle one is called the "watery layer",and the outermost layer is called the "oily layer".the oily layer serves to prevent the rapid evaporation of the underlying two layers.
When a person blinks the eyelids move over the tear film thereby causing an uniform distribution of the "fluid"(tear film).This serves the purpose of lubrication of the eye and keeps it wet.This film also prevents then entry of other pathogens and dust found in the environment.
When you keep your eyes open for a long time without blinking,the tear film gets evaporated rapidly,thereby causing dryness of the "sclera" that's exposed. This stimulates nerve fibres present on the surface and the impulses are carried to the brain which results in the sensation of "burning",thereby forcing you to blink again.
Yeah,that's it yaar.nothing more..so that's why we blink.
take care, bye.
2007-01-19 10:33:39 · answer #2 · answered by sabi 2 · 1⤊ 1⤋
Your eyes will dry out. Keep blinling! Blinking the eyes help the glands to produce tears that prevent the eyes dry...
2007-01-19 08:21:39 · answer #3 · answered by Anonymous · 1⤊ 1⤋
Blinking is a mechanism to wipe tears across your eyes to clean them and remove irritants. If you don't blink, your eyes get irritated, with risk of infection.
2007-01-19 08:18:17 · answer #4 · answered by Tom :: Athier than Thou 6 · 1⤊ 1⤋
there are lot of bacterias in the environment. they continously enter to our eyes and are harmful.
to protect us from them our eyes releases fluid which comes in our eyes when we blink them.
so if you dont blink they can destroy our eye outer layer so never try to do that.
2007-01-19 08:29:47 · answer #5 · answered by divas 3 · 1⤊ 1⤋
blinking your eyes is to 'lubricate ' the eye and eyelids are to like stop things from touching it and crapp.. it would be soo dry iff you didnt blink your eyes and just yuck ..
2007-01-19 08:23:06 · answer #6 · answered by Anonymous · 1⤊ 1⤋
all of the "stuff" in the air gets onto ur eye's surface....and you blink every few moments to clean ur eye.
2007-01-19 08:17:48 · answer #7 · answered by jon f 4 · 0⤊ 1⤋
Your eyes dry out and then they stop working.
2007-01-19 08:21:30 · answer #8 · answered by doogieusa 2 · 0⤊ 1⤋
eyes get dry
2007-01-19 08:57:20 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Conjunctiva and cornea get infected.
2007-01-19 09:27:31 · answer #10 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 1⤋
Have to use lubricating drops and ointments
2007-01-19 09:59:46 · answer #11 · answered by Anonymous · 1⤊ 1⤋