2007-07-08 06:33:34 · 19 answers · asked by Bethy 4 in Health ➔ Other - Health
Blinking is the rapid closing and opening of the eyelid. It is an essential function of the eye that helps spread tears across and remove irritants from the surface of the cornea and conjunctiva. On average, a blink takes approximately 300 to 400 milliseconds.
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2007-07-08 06:54:56 · answer #1 · answered by Quizard 7 · 9⤊ 0⤋
Every time you blink it moistens your eyes and keeps them free of dust etc. The eyes are naturally moist anyway so need to be prevented from drying out.
2007-07-08 13:39:22 · answer #2 · answered by Poison 4 · 1⤊ 0⤋
It keeps the cornea moist,
without moisture, the body would deposit a layer of protein (like on the skin) over the dried surface, which would scar the cornea, or make it relatively opaque
2007-07-08 13:44:15 · answer #3 · answered by Phillip D 1 · 1⤊ 0⤋
mmm Good question let me think ... yes I think that is only for lubricate our eyes, well try to no blink about ehhmm ... 20 seconds, you will see that is not very nice jaja
Love, "the prettiest teen she-devil" Ailin
2007-07-08 13:55:07 · answer #4 · answered by ...x[Ailina]x... 2 · 0⤊ 0⤋
To spread moisture over the eye, move debris to the corners for removal and prevent the entry of foreign matter. (The eyelashes cause you to close your eyes if flying sand hits them.)
2007-07-08 13:46:28 · answer #5 · answered by oplsjames 3 · 0⤊ 0⤋
To stop us seeing all the fairies and pixies around us....they only appear when we blink!
2007-07-08 13:42:26 · answer #6 · answered by budgie 4 · 2⤊ 0⤋
To rinse the eyes with fluid to prevent them from drying up.
2007-07-08 13:45:25 · answer #7 · answered by Anonymous · 0⤊ 0⤋
hiya we blink cos it cleans and moistens the eyeball x
2007-07-11 05:50:36 · answer #8 · answered by susan w 2 · 0⤊ 0⤋
when you blink you 'refresh' the eye, and this is an involuntary movement
2007-07-08 13:50:30 · answer #9 · answered by Anonymous · 0⤊ 0⤋
To lubricate our eyes so they dont dry up. also its to protect from foreign objects getting inside the eye.
2007-07-08 13:37:31 · answer #10 · answered by ? 4 · 1⤊ 0⤋