Non-dissolving sutures used internally for upper bleph?

Yes, there are many ways to close the upper eyelid incision, depending on the eyelid issues being addressed. Since you have a loop of suture sticking out, I would follow up with your surgeon and have them look at the incision.

Occasionally sutures and the knots used to tie these sutures become visible or even inflamed.  The sutures can spit.  These issues can make it necessary to remove the suture.  Generally this requires a minor procedure done in an office setting.  In some cases, removal of a suture is best done in an operating room.  See your surgeon and bring your concerns to their attention.  Exposed sutures like this generally need to be removed.

Closure techniques vary among surgeons, however what you describe is not typical.  I routinely use permanent suture material to close my upper blepharoplasty incisions, however this is removed in a "pull-out" manner after one week. After this time there is no more suture left behind in the patient.    It sounds like your surgeon simply missed one of the small sutures of the time your sutures were removed.  The suture that you are feeling can be easily removed in the office if you follow up with your surgeon. I recommend you contact your surgeon and let them know the situation.  

There are many acceptable methods for closing blepharoplasty incisions, some including non-dissolving stitches. Because of the thinness of the eyelid tissue any foreign body that is retained is likely to be apparent if too shallow. Although it is possibly scar tissue it may be that there is a retained suture fragment which can easily be removed, possibly using local anesthesia. You should return to your surgeon to have this resolved.

Agreed, the only reason I ever use non-absorbing sutures is for an Asian eyelid where you are creating that westernized upper eyelid crease or correcting of ptosis (aka droopy eyelid). ask your PS if they made a decision to correct a droopy eyelid? Hope this helps - Dr. Miguel

The only reason to use non-absorbing internal sutures is for creation of an upper eyelid crease or correcting ptosis of the upper lid.  I agree that this was likely a suture left behind and needs to be removed.