Brow lift surgery corrects brow sagging that naturally occurs with age. It is common for brow sagging to also affect the upper eyelids. Thus, sometimes a brow lift may be performed with an upper blepharoplasty, or may replace the need for the procedure altogether. So, while a brow lift may address extra skin on the lids, can a brow lift change eye shape?
In general, no. Beyond providing some lift to the upper eyelids, a brow lift is not going to significantly change eye shape. Another procedure—known as a canthoplasty—is necessary to change eye shape. This surgery is sometimes used to lift the corners of the eyes when they sag due to age or fat loss. However, it can also be used to enhance eye shape.
With that said, major changes to eye shape are not recommended and are often not possible. Small alterations like a canthoplasty that tightens the muscles near the eyes to pull it slightly upward are generally safe, but beyond this, patients should not consider major changes to eye shape unless it is in a reconstructive manner.