Do they make a time released version of that?   http://efa.org has a
medications glossary if you don't have other information routes.    It's too
bad they didn't try other routes when you were using Tegretol CR?
(Carbamazepine).  So far as I know once you leave it, you usually can't go
back to it. When I had what you described, we lowered the night dose by half
a tablet on alternate nights (100mg) for about 2-3 weeks, then back to the
original dose and the symptoms went away.
  I *think the blurred vision is either too high a blood level or a
*reaction to the pill- latter is why they moved you off of it.   You should
tell the Dr. anyway about it, as they should know what to do, although they
didn't? with Tegretol.  :-< .  (Months after I got above change stable, we
slowly replaced the night dose with a second pill and removed the Tegretol
then, but kept it with the AM dose. I don't know if your new pill can be
used in combination with other secondary pills, that's why your Doctor needs
to know.)
   You might as well look at the efa page to see if other
contra-indications are advised that you might not have received from
Pharmacy or Dr. wrt. Topamax.  I found a Tegretol and Grapefruit Conflict
(one of its acids)  on efa site or 'here',  before my Pharmacy updated their
printout with an advisory for Tegretol.  There could be other things you're
using that conflict with the Topomax?  And check  the correct spelling on
the pill bottle -- I thought it had 2 o's, but I've never used it.      G./