I gave up on bifocals. I gave them a try, twice, and they drove me nuts! I find even the "no line" ones annoying as hell. I bought a pair of "computer glasses" and they were a waste of time too, they were blurry and while they did make the monitor look slightly better, they made the TV, which I watch a lot while using the PC, look like a bad TV from the sixties instead of the high def it is. I ended up getting normal lenses put into the for a spare pair. I don't seem to have any problems seeing when I shoot, my back is my main issue. Unlike most of my friends about my age, I have zero shake. I have the steadiest hands I've ever seen. My doctor's hands shake, and he's only about 45 years old. No surgery for him anymore.