I think that it all depends on the anatomy of your eyes. Some people do have severely droopy or heavy upper lids and I can see where you might be told to get this corrected whether or not you had Blepharospasm. If this is the case, you would just need to discuss with your surgeon as to whether or not you would want to have muscle removed from your upper lids (myectomy) or if you will just have a ptosis repair(Blepharoplasty) for the droopy upper lids to just remove the excess baggy skin and possibly tightening or advancement of the levator muscle which helps you to open your eyes. If you don't have muscle removed, also, from the upper lids, you will probably still need injections in this area (which will be more uncomfortable after surgery). The continued spasms in this area will also cause your upper lids to be stretched again over time.
I'm just throwing out some things to discuss with your doctor. Everyone is a little different with this. If you have not done so, you might check with a Neurologist that is a Movement Disorder Specialist who is familiar with BEB. Surgeons will almost always suggest surgery. I felt more comfortable having a myectomy after a Neurologist told me that it was a valid option for me.
I had my surgery approximately 2 years after the onset of my symptoms. It is not a cure. I got improvement but not as much as some people that I know.
Good luck to you and let us know what you decide to do.
Shirley in Arkansas