Editorial Note on Tear-Deficient Dry Eye
The tears in eyes make do much more than your sorrow when you cry. These glands produce a constant supply of liquid. Your eyes should always be moist. Whenever you blink, the action drags tear along the surface of your eye. This keeps it wet, clean, and healthy. If your glands do not produce enough tears, you can get a condition called aqueous tear-deficient dry eye. It causes pain in eye, redness, and vision loss problems.