I'm fairly highly myopic (- 7.5, and -8.0 Dioptres), and have started needing glasses for presbyopia over the last year.....and have been a bit caught out, albeit more for close reading, I think: I have always habitually held books far more closely to my eyes than average, no doubt because I already had prescriptions of about -1.5 and -3.0 at first diagnosis. Since each dioptre of correction means that you can only see half as far as someone with the next number down in their prescription, that's fairly significant. I opted for varifocals so that I could have a smooth transition between the corrections I need, but didn't let my optician know (because I didn't think about it) how closely I hold text to read it. Because I have a high prescription, the effect of my lenses is to make print very much smaller to read than it really is, so holding small print further away is not an option - I have to take my glasses off to read or to look at small things close to. It also gives me problems with some aspects of reading music - the varifocals only focus in a relatively narrow strip down the centres of my lenses, so I need to place my head accurately relative to the music, so as to be absolutely square on, and that means if I'm playing duets, I have to shove my partner out of the way for one page of the two....or guess a bit. Most notes are okay, it's the accidentals, and particularly sharps and naturals, which give me problems - that and ledger lines

. However, although I could have got some of this corrected for if I'd known to inform the optician, I don't think that I'd really be any better off with bifocals. And having been visually impaired for a very very long time now, the idea of having lots of bespoke pairs of glasses absolutely appals me - after all, I'm not in the habit of losing specs, because they live on my nose all the time

. I'm utterly helpless without them, too...I think the best you can do is talk it over in detail with the optician, and see if they have some advice:it's just too individual a choice to make, and at least they'll know your prescription and are better placed to have an idea of what might suit.