Eyelid

+The **eyelid** is a delicate fold of skin covering the human [eye](/wiki/eye), serving as its primary shield. It works to protect the ocular surface from foreign bodies and maintain moisture by rhythmically spreading the [tear](/wiki/tear) film with each blink.

+## See also

+- [Blink](/wiki/blink)

+- [Cornea](/wiki/cornea)

+- [Iris](/wiki/iris)