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  1. Very well said Rajvi
    With tears flows with this sad part of emotions which are supplying oxygen and nutrients to the eyes
    There are no blood vessels on the surface of the eye, so oxygen and nutrients are transported to the surface cells by tears and foreign bodies that enter the eye are washed out by tears. Moreover, tears contain a substance called lysozyme, which has an antibacterial action, and works to prevent invasion and infection by microbes.
    Tears also contain components that heal damage to the surface of the eye.

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