Eyelid retraction repair using an Alloderm graft can be revised or corrected, but the feasibility and specific approach will depend on the individual case and the extent of the eyelid retraction. Alloderm is a type of acellular dermal matrix graft that can be used in eyelid retraction repair to provide support and improve the position of the eyelid. If there are complications or unsatisfactory outcomes following the initial surgery, revision or correction procedures may be considered. The specific techniques used for revision or correction will depend on the underlying cause of the eyelid retraction and the surgeon's assessment of the situation. I hope this helps, best of luck !