Oh boy.... Bifocal progressive suck big time IMO. I had major headaches still 5 weeks after getting them and I absouletly HATED all the fuzzy out of focus areas in the lense. You have to turn your head to focus, or up and down VS move your eyes. There is only a small sweet spot where it is clear. And when lying in a blind, the horizon was blurry-absolutely sucked for watching for geese. At arms reach most everything was blurry-yeah right a brick layer not being able to clearly see what he is doing!
And then I damned near literally killed myself on the job wearing progressive-I could not clearly see depth perception as I was walking the first 5' in front of me--stumbled on something and fell into a trench with rebars sticking up out of the concrete-and got lucky and fell 1' to the side of one of them rebars. Can you say ShishkaBob? :pissed: I was adding the plastic "protectors" on them rerods so if somebody did what I just did (fall), they would not get seriously impailed. Talk about Irony.
I got instead the lined bi-focals, they are much better IMO. I have fairly large lenses so more area is clearly in focus [the "style" is granny small lenses-(screw that!)it is fairly hard to find bigger frames], and only 10mm (usually much more area) of magnifified for reading--and they screwed that up too as is is set for about 10" away-not 14 to 16" away like when I read a book or newspaper, heck at 7" away I can read clearly, so they screwed up the distance IMO.
In the future--I'll get 2 pairs, one for reading and one for my nearsightedness. Bifocals suck IMO.
Anyways, ask lots of questions, and make sure you get the correct distance to focus for the specks.