Looks like you're right Jan... (what does schreef mean?)

Good point Dr Judy, and I will continue using dailies when I travel
(for ease) and in winter when I don't swim a lot.

But I live on the coast in Australia and in summer I swim 4 or more
times a week, and I need to be able to see the waves, and with the
extremely  good deal I've seen on Acuvue 2, it works out quite a bit
cheaper to use those even if only 4 times a week, than to use the
dailies for the same period.  And as I only wear them for an hour or
so at a time, cheap is even more inviting cos I dont' get so much use
out of them.

I've also checked now, and the material is the same as the Acuvue
dailies I used to use, so the one and only thing that is different is
the base curve, so I'll go for one or the other.  If it's not a matter
of health issues and just a comfort factor, then I don't so much care,
cos I'll only be wearing them for an hour or so, but if it's safer to
err by having the base curve sligthly too big, rather than slightly to
small, I was hoping for advice.  But if it is too complex to be able
to say even that, I'll just take a stab and go for the bigger size as
in my ignorance it seems that would be less likely to be a risk.

I'd ask my optometrist, but I just had a fitting for contacts
recently, and the place I go to has different optometrist all the
time, for this fitting I had 2 different optometrists, one who gave me
2 trial lenses, which I had hoped would give me a lense I could
actually feel comfortable wearing full time, not just for swimming,
but they weren't comfortable enough.  So when I came back there was a
differnet optometrist, and he had no further suggestions to make in
terms of comfort, so I just decided to go for the cheapest option, and
stick with short wearing periods. So he gave me a list of about 7
contacts, based on the prices in their catalog, and said I could
choose between them rather than specifying the exact one.  As far as I
can tell, Acuvue 2 could just as well have been on the list, though
perhaps the marginally thicker centre made it seem inappropriate in
terms of comfort, but for an hour's wear, I don't care about that so
much.  And I don't really want to have to have another whole visit for
just the one factor, base curve.

Any of the ones I've tried have been equally comfortable, just not for
long periods.  When I was younger and vainer, I did wear them all day
every day, but now, total comfort is more important.  And they are
comfortable for an hour or two.

And I certainly do appreciate that professional fittings are very
important, and I've had many in my 30 years of wearing contacts on and
off, (with cleaning regimes and disinfections ranging from boiling, to
peroxide and neutralising tablets, protein removal treatments, and the
current all in one chemical treatments)   I just thought I could get
away without another appointment, when I've just had 2 in the last 2
months and when most of the aspects of the lenses match ones I've
already had, and in the situation when the actual period they are in
my eyes is so small.  I do appreciate eye threatening disease can come
about through inappropriate behaviour around contacts and wouldn't
want to encourage others not to get professional fittings.  But as I
said, I have had 2 appointments in the last 2 months, and am an
experienced wearer, who is going to be wearing contacts for only an
hour or two at a time.

Thanks

juliet