Floppy eyelid syndrome refers to a condition where the lids become so stretchy and loose that they easily flip over when the person is sleeping or rubs or wipes them. As a result, the irritation on the inside of the lid causes a scratchy, itchy, or sandy feeling, and there is often some chronic discharge or wateriness of the eyes.
This condition is associated with chronic eye rubbing and sleep apnea. When the lids become excessively floppy, they drop down over the pupils and the lashes drop into the field of vision as well. Floppy lids may be corrected with lid tightening surgery, and symptoms do usually respond well to surgery. However, it is important to address the underlying condition, such as sleep apnea, or reason for chronic rubbing, such as environmental allergies.