Sunday, January 28, 2007

facts: why do people blink?

Facts: Everytime we blink,
normally about 360 times per hour,
tear is secreted by the lachrymal
gland In the corner of the eye.
This tear spread over the cornea
to keep the eyeball clean & moist.
The amount you blink increases when dust,
wind or brignt light threates to harm the eye.

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