I tried the graduated bifocals too, but like you I needed a wider field. (In my committee meetings I frequently have the laptop in front of me, with documents on the table both sides, and I need to go back & forth quickly.) Regular bifocals work for me (but people still wonder: I'm wearing glasses but I print my documents 2-up -- I used to do 4-up but it's a bit of effort now).
There's a term for the really wide field of view, but I've forgotten it.