You Have Hooded Eyelids
Hooded eyelids are naturally occurring in some families, however, the most common cause of drooping eyelids is aging, as the collagen in your skin breaks down and skin loses it elasticity. Most of the time hooded eyelids is purely a cosmetic issue, however if one or both eyelids are impairing your vision it should be corrected, as it can lead to astigmatism or permanent vision loss.
If only one eyelid is affected, or if aging is not the issue, there may be a more alarming reason for the droop. More serious causes for hooded eyelids include cranial nerve and brain injuries, such as brain tumor, stroke, aneurism and long term-diabetes. In addition, drooping eyelids can also be caused by diseases such as multiple sclerosis or muscular dystrophy.
