All surgery requires a scar and all scars take time to soften and fade. You will not see the final appearance of your scar for a year after surgery. It is usually red and raised for the first month or two after your operation. The scar for varies with the type of surgery.
For a blepharoplasty the incision usually lies in the creases of the mid part of the upper lid and along the lash line of the lower lid, often extending into the crow's feet.