I agree that you would never want to have cataract surgery unless you truly have a cataract where your lens is cloudy and causing vision problems. If you do there are lenses that provide some magnification. I know this becuase I have one that allows me to read without glasses. I do not know if there are lenses that would be good enough to thread a needle and this is something I have not tried to do. And even if I could, it would not mean you could. If you have a true cataract this would be a reasonable question to ask your eye surgeon.