If you go to the eye doc,ask for him to set the focal length out for monitor use.
I have a pair like that,1 problem tho you must remain within the focal distance from the monitor,unfortunately my eyes continue to need corrections so I need to have them replaced.
I'm most likely going to a big monitor and sit further away as my distance vision is fine.
I use a 24 in now but I think something around 40 to 60 in would do wonders for my vision......