Eyelids are accessories of the eye. They are not organs.
your eyelids and eyelashes
your eyelids and eyelashes
They have eye lashes.
eyelids
crocodiles have 4 eyelids. they have 1 pair of normal eyelids like us but they have one that is see through. When they go under water this eyelid covers the eyeball so salt or water can not go into its eye. thanks!
the round part of the eye of a vertebrate, within the eyelids and socket.
The main purpose of eyelids is to moisten the surface of the eye, which in terrestrial vertebrates (like you and I) is nessesary to provide the eye with lubrication to move. Underwater, the eye is lubricated by the water, and kept moist without effort, thus the eyelids are not present because they don't need to be there. Interestingly, although it may seem that eyelids are the norm, the majority of species with eyes don't have eyelids. Insects for example.
You can't blink, thus crap gets in your eye and you go blind. I'd call that a disability, wouldn't you?
Eyelids and Eyelashes.
eyelids and eyelashes
If your eyes are weeping and your eyelids are red, you may be coming down with pink eye.