Many thanks for the responses and commiserations to fellow sufferers. I think I'll probably stick with my Superdrug half-moons and push up for the panel, as suggested.
The horror of adjusting to glasses after 50 odd years without has given me real sympathy for those who have always had to have corrected eyesight. I didn't realise how lucky I was.
confundemus
PS Isn't this a nice forum? Nobody is being rude or vulgar.