They're "prescription" only to a degree.

A local swim-only sports store carries TUSA Rx goggles, but only the
same-lens-both-eyes models.   Because I have a rather wide disparity
between my two eyes I really ought to use one of the Internets and
order two different TUSA lenses with a frame kit, but I'm impatient
and don't want to wait "one to two days" for my order to be processed
plus another 12-15 days for the things to get here (from California, I
can't imagine what service they're using that will take that long to
arrive here in Texas...)

So I will probably buy OTC swim goggles with the same minus for each
eye that will accomodate the better of my two eyes.  As little as I
like monovision I enjoy swimming even less when I run into the side of
the pool or mistake petite grown women for my son.

Ugh.

+++++++++++++

Reply to the list as I do not publish an email address to USENET.
This practice has cut my spam by more than 95%.  
Of course, I did have to abandon a perfectly good email account...