Revision double eyelid surgery is considered when the initial results are unsatisfactory or when the crease has loosened or become asymmetrical over time. Common reasons include a crease that is too high or too low, asymmetry (one eye higher than the other), loosening of the sutures used in the buried suture technique, unnatural appearance due to adhesions or scarring, and a thick appearance caused by residual fat or skin. Since revision surgery is performed on tissue that already has scarring and adhesions, it can be more challenging than the initial surgery. It is also known that, because the amount of remaining tissue and skin is limited, it may be difficult to freely adjust the crease to the desired shape. It is generally recommended to schedule revision surgery after the tissue has stabilized to some extent and swelling has subsided; sharing records and details of the previous surgery can aid in this decision. The scope of what is possible varies depending on the method used in the initial surgery and the condition of the scars, and recovery times also vary significantly from person to person. This information is for informational purposes only and does not constitute a diagnosis. Please consult a specialist regarding actual procedures.
[Source] https://my.clevelandclinic.org/health/treatments/8409-eyelid-surgery-blepharoplasty