Breast lift, or mastopexy, is a surgical procedure to raise and reshape sagging breasts, at least, for a time. (No surgery can permanently delay the effects of gravity.) Mastopexy can also reduce the size of the areola, the darker skin surrounding the nipple. If your breasts are small or have lost volume, for example, after pregnancy, breast implants in conjunction with mastopexy can increase both their firmness and their size.
If you're considering a breast lift, Dr. Duus can provide you specific information on how he would proceed in your particular situation.