Hi,
I can't speak to getting the tiny stitch in the lower lid as I did not have that done. I did, however, get the same size eyelid weight not long after my AN surgery three years ago. I only kept it in for one year before I was able to have enough closure to have it removed. It was particularly helpful at night while lying down.
I have facial paralysis due to facial nerve being severed during surgery. I did have the 12/7 nerve graft 4 days after AN surgery to enable face to regain some movement. I will say that it takes the nerve 12-18 months to begin healing so patience is key to this whole process. I started seeing slight movements at about 6 months.
Be sure to keep plenty of lubricant eye drops on hand and I found ointment at night helpful. I did not have complete closure either so eye care was of utmost importance.
Not being in the medical field, I don't know how or if the stitching would affect the nerve or regaining the movement ,,, I just know I didn't get it nor feel I needed it for comfort of eye.. Just having my eye close as much as it did was a big relief as you expect.
Good luck to you and let us know how it goes for you! You will feel much better I am sure.
Jane