Are Subcuticular Sutures the best option on the Upper Eyelid?

Subcuticular sutures are placed under the surface of the skin. As the upper eyelid skin is thin, a very fine suture is used to repair the incision. There is no need to do interrupted subcuticular sutures as each stitch must be a dissolving stitch as it will not be removed and would require a knot where the stitch is tied. This collection of dissolving suture material under the skin will create a reaction as your body dissolves it and can result in a more reactive, red raised scar. The best option is a running, ie continuous suture, of permanent/nondissolving suture material, which does not create the reaction in the scar as your body is not trying to dissolve the suture. The stitch enters one end of the incision and goes back and forth between the edges of the incision and exits the other end of the incision. Removal of the suture is simple, just cut one end of the suture and pull the other end and the stitch simply pulls out. This is how I close all of my upper blepharoplasty and lower blepharoplasty incisions. Any well trained plastic surgeon should be able to use this technique. Best wishes.

Both interrupted and subcuticular closure techniques can yield excellent results in experienced hands. The key factor is not necessarily the technique itself, but how precisely it's executed. That said, we generally avoid absorbable sutures for subcuticular closures on the eyelids, as they can sometimes lead to a thicker scar due to tissue reaction during absorption.
In our practice, we prefer using fast-absorbing gut (like 5-0 fast gut) placed in the skin, which tends to fall off naturally within about 5–7 days and typically leaves very minimal scarring.
This technique is not necessarily new or limited to plastic surgeons—many oculoplastic surgeons use variations of it depending on patient factors and personal preference. If you’re interested in a particular closure technique, it’s absolutely reasonable to discuss it with your surgeon during consultation.

this is 100% dependent on the surgeon operating. the upper eyelid region honestly heals so well that I doubt it matters significantly which style a surgeon uses. i personally do not use subcuticular here but I doubt there is a significant difference. this is not something I would dictate of your surgeon; let her do it the way she has always done it.