Dermatochalasis is a medical condition, defined as an excess of skin in the upper or lower eyelid, also known as "baggy eyes.
[3] It can also be observed in various hereditary connective tissue disorders, including classical Ehlers-Danlos syndrome and cutis laxa.
Dermatochalasis is caused by a loss of elasticity in the connective tissue supporting the structure of the front portion of the eyelid.
[2] If dermatochalasis is severe enough to obstruct the peripheral or superior visual fields, then it may be treated with a surgical procedure called blepharoplasty.
While the improvement of vision is an indication for blepharoplasty on the superior eyelid, if the visual fields are not obstructed, it may be performed for cosmetic reasons.