I wear progressive lenses but mainly because I got tired of putting on and taking off my reading glasses. I don't need glasses for distance yet but it's just easier to wear the progressive lenses. You get used to them quickly but the newer style narrow lenses as bmorey points out make for smaller focal areas which again you can get used to. By the way I don't wear my glasses when cycling but it makes it hard to read the cycle computer readout.
Thanks, Mike.