As said before, what opticians was it? I cant see why you cant have them. Dailys or monthlys.
I use Dailys for when I go out to pub or riding the bike etc. Prefer to wear glasses all the time though for general use and for work.
I go to Conlon's. Been using them for years and had no problems what so ever with them. Cant recommend them enough to anyone around here.
6 months or so ago I bought a new pair of glasses. £224 all in, inc £40 insurance. 3 days later, lost them in the pub whilst watching the champions league final

As they were insured and I lost them myself, I got 50% off my replacement pair, so that was another £92 paid.
By this point, I got talking to one of the women there and ended up on a few dates with her, so it was worth going back for the 2nd pair
Anyway, week or so after I got my new replacement pair, Im talking to the manager of the bar and he only found my 'lost' glasses and gave them back to me! The lenses were slighty scratched. So I go to see my 'lady friend', we work out a deal, that they arrived at the store stratched, return them and get a new pair again. So Ive ended up with 2 pairs, the same for £316

One pair for general use and one pair for work.
I pay £44 every 6 months for 30 pairs of dailys. They are worth it.