Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Eyelid Disorders ?
    ### Response:
    Your eyelids help protect your eyes. When you blink, your eyelids spread moisture over your eyes. Blinking also helps move dirt or other particles off the surface of the eye. You close your eyelids when you see something coming towards your eyes. This can help protect against injuries.
    