@Ian:Getting a single pair of progressive lenses to work for general-purpose AND computer/reading is a big ask.

Personally, I have 2 pairs - one that is oriented to general purpose use, with only a relatively small area for reading distance - and the second are specialised to computer-screen distance when looking straight ahead, and keyboard/desk/paper distance when I glance down, but still good enough to allow me to walk around the office without crashing into things.