I started with lined bifocals in my early 40's and after a while tried progressives which worked okay for me at the time. Now in my late 50's, I need trifocals and progressives give me enough distortion around the edges to really mess up my peripheral vision. I've toyed with the idea of trying progressives again, but I'm so used to the lined trifocals I'm not sure I'd be able to adjust.
