D.K.
You need to go to the EGOSCUE website. You'll be able to better understand your carpel tunnel and realize that surgery really won't be a fix. Listen to your daughters!! There are exercises you can to do re-educate muscles and reposition your shoulder, etc to allow proper circulation and neurological function in the wrist and hand.
I'm a certified posture alignment and pain management specialist and I've seen it over and over. Trust me on this one. Worth checking into and putting a little effort into, as well.
There are also a couple of books you might want to invest in.....PAIN FREE AT YOUR PC (some of the same issues as carpel tunnel) and PAIN FREE - both by Pete Egoscue. You should be able to find used ones on Amazon. EXCELLENT user friendly reference.
Let me know if you have any more ?s and how it goes. PLEASE, don't ignore my recommendation. You'll be glad you made the effort to look into it further and realize it CAN get better WITHOUT surgery!