Wednesday, June 22 2011 - 0 comments
Tears are your body’s natural way to protect your eyes by keeping your corneas moist, and flushing out harmful particles. Your eyes produce tears in order to provide constant lubrication to the eye. With every blink, the surface of the eye (the cornea) is coated and protected by tears. These tears help keep the eye clean and free from dust or other debris. They provide protection against infections, and they help stabilize vision. Your eyes are constantly coated by a tear film that is made up of three distinct layers. The mucous layer consists of mucin. It is secreted by the conjunctival...
what-are-tears, tear-definition
