Step by step animation showing how ptosis is surgically repaired. Normal eyelid movement is required for proper lubrication of the eye as well as protection from airborne irritants. However, when the eyelid does not fully open, it can not only obstruct vision, but creates a cosmetic facial asymmetry. A droopy eyelid or ptosis can be congenital or acquired through injury, disease, or nerve damage. Most commonly however, it occurs with aging as the upper eyelid skin and muscles stretch and weaken. Specifically, the levator aponeurosis which attaches the tarsal plate to the levator muscle is the main area where stretch occurs preventing full eyelid opening. When the levator aponeurosis is abnormally elongated or stretched out, ptosis occurs.

Treatment of ptosis requires shortening the levator aponeurosis so that the tarsal plate is brought closer to the muscle. This surgery is performed by an oculoplastic surgeon.

Animation created with Dr. Andrea Tooley, oculofacial plastic and orbital Surgeon @AndreaTooleyMD

Video produced by Dr. Chris Chang:
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