Ptosis surgery shortens the stretched tendon or re-attaches it back to the eyelid. There is usually no need to make alterations to the muscle that lifts the eyelid, as this tends to remain strong.
It is usually performed under local anesthesia as a day case procedure, with no need for an overnight stay in the hospital. The surgery lasts approximately one hour and aims to restore the symmetrical height and contours of both upper eyelids.
Sometimes the eyelid needs to be attached to the brow muscle, using allograft or synthetic materials, allowing the forehead muscle to lift the eyelid, like in the case of congenital ptosis.