Lubricants: Medications that keep eyes moist, mimicking natural tears.
To keep your eyes from drying out. Dry eyes can cause your eyes to be bloodshot!!!!
To keep your eyes moist so that you can see :)
The Tokay gecko species, has no eyelids. Because of this, the eyeball must consistently be licked, to keep moistened and improve vision.
You should always wear sunglasses when you are outside on sunny days. Also, keeping your eyes moist if you have trouble with dry eyes will help keep your eyes as healthy as they can be.
Because the tears keep our eyes wet and clean.
by blinking and sleeping, basically closing your eyes
To protect it from objects and to coat the eyeball to keep it moist.
Every animal blink for the same reason: to clean their and keep them moist.
Frogs have two sets of eyelids. The first set works much like human eyelids, for the frog closes them to shut out light and wipe its eyes clean. But when frogs dive, they close the second set of eyelids, which are transparent and enable frogs to see clearly as they swim underwater
Like all mucous membranes, a vagina is always moist to keep clean.
by blinking and cleaning your eyes with a cloth every once and a while.