The weight is placed inside the upper lid(outpt. surgery) - my surgeon placed it for the most symmetry to my other eye. Those who have less paralysis than I do are able to fully close their eyelid when they blink - the weight works like gravity - when you blink your eyelid will close. Because I have total paralysis, I probably have to blink harder than others.
My surgeon told me the weight needs to be replaced every 5 years (for those of us who will have it in permanently).
If you get movement back, the weight can be removed, no problem.
Prior to the weight, my eye had a 'skeletal' look - wide open, the top eyelid was all the way up & the bottom lid fell all the way down.
Now my eyes look almost symmetrical, you don't feel the weight in the lid.
Always good thoughts, Nancy