I've just collected new varifocals (on Wednesday) from Specsavers. I've worn varifocals for over 10 years, but this was my first new set for 5 years.
My vision seems to be deteriorating each day as I am now struggling to read books and the computer - today is now quite blurred and my eyes sting. This set is far worse than the ones that have just been replaced.
Is it possible that the wrong lens have been fitted?
It's doubtful because there are rigorous systems in place to ensure that this doesn't happen. However, there are many things that can go amiss with varifocals such as the fitting, and optical centres. Sometimes it is just the make or type of varifocal that has been dispensed that isn't suitable. You should call the store and go back to let them check the glasses, and if necessary to retest you. I am sure they will sort it out.