I have had varifocals for years and love them,no more changing specs to see prices etc. I do use reading glasses for close work tho,as I end up lifting them up which is a bit of a pain. When I got my latest pair the assistant suggested I try the middle size varifocal,there are three sizes I think.They are fine for reading but not 100percent for driving.I went back after a couple of months and they are quite happy to change them back to the size I prefer, (Specsavers by the way) and even said I could choose a different frame if I would like to,which I am going to do,as the frame I have was 85pounds I was quite surprised by this so I would say that you could try them out Hopkirk without any worry at all.