Fort Lauderdale Eyelid Surgery doctors

Age 21 is a bit young to be considering lower lid surgery, however, judging from your photos, you do have signifigantly protruding fat pads.  The fat pad bulges are not related to body weight, but are usually a familial trait which becomes more pronounced over time.  A subconjunctival blepharoplasty would result in removal of the fat pads without skin incision or scarring.  The fat pads generally do not regrow, so results are relatively permanent.  In evaluating your pictures,it is not clear exactly how to treat, as photos to assess this area are best taken when looking up, and also looking directly forward.  Your best bet is to have in-person consultation(s) with one or more board certified plastic surgeons who specialize in cosmetic plastic surgery (members of the American Society for Aesthetic Plastic Surgery).

Without an in-person clinical exam, it is not easy to see from the photo if you have bulging lower eyelid fat pads.  If you do, a sub-conjunctival lower lid blepharoplasty would be helpful.  In this procedure the lower lid fad pads are removed via incisions inside the lower lids, so skin scarring is avoided and lower lid shape is preserved.  

In addition, the photo seems to indicate volume loss in the upper cheeks  (tear trough grooves), which is a very common problem.  This issue is easily remedied with hyaluronic acid filler injections, such as Juvederm or Restylane.  I would recommend doing the surgical blepharoplasty first ( if it is indicated), then getting the fillers after the post-surgical swelling has fully resolved.  

The risk of keloid formation following upper eyelid blepharoplasty is extremely low.  However, if the incision on the inner (medial) portion of the eyelid extends too far towards the nose, it is possible to form a thick, raised, hypertrophic scar, possibly even a keloid in that area.