I had worn contacts (Acuvue/AV2) for about 5 years, pretty happily.
About 3 years ago, when I went in for a checkup and refit, my OD told
me that I had the beginnings of neovascularization, probably from
overwear.  (I had been wearing the Acuvues EW for 2 weeks at a time).
At that time, I cut back to one-week wear, and used them happily for
about 6-8 months.

At that time, at the end of the day, my eyes would get a bit red, and
my vision blurry;  I needed to blink hard a few times to clear things
up, every hour or so.  At the time, I thought the problem was related
to the NV, and that I ought to give my eyes a rest, and I ended up
switching to glasses, and wearing no contacts for 2 or 3 years.

Recently, I went back for new glasses, and talked to my OD about
contacts;  They said that the NV they saw was very mild, and looked to
be receding, and that I could wear contacts again (or, didn't need to
stop), told me my problem was probably just dry eye, and he gave me
AV2s (I actually still have a couple of non-expired pairs left).  I
tried these out, and they were OK, but still uncomfortable at the end
of the day.  The AVs and AVA's are both 8.7 BC

I went back for a refit (and also, to pick up my glasses), and there
was another doc on duty, who I explained my problem to, and she gave me
a pair of Acuvue advance lenses.  These didn't seem to be much better,
actually, although now that I've been reading about them, I think I'm
sold on trying to get silicone hydrogels, to reduce the possibility of
NV being a problem.

I think my main issue with the advances (and maybe also the AV2s) is
that when they get a bit dry, they don't stay centered -- they get a
bit sticky, and my blink brings them upwards, which leads to a bit
blurry vision (halos, I guess? although I don't think I have very large
pupils).  In both cases, rewetting drops seem to help (At first, I
tried bargain drops, but then I got hypo tears which seemed to work
well).

I'm interested in trying the Oasys lenses, or one of the Ciba SiHi
lenses.   Aside from the better permeability of the other lenses (and,
at least with the Ciba for now, the approval for overnight wear),
perhaps the tighter BC of the oasys lenses might help keep them
centered better?

I hate being a pain and keep coming back to my doc -- but I remember
when I first started with contacts how great it was to just drop them
in and forget about them, and never notice them, and not have to mess
with rewetting drops, etc.

Anyone have experience with the oasys or ciba lenses, think they'd be
better for me?  Or am I just being suckered in by the marketing?