Originally Posted by T. Arthur

[T. Arthur]
Thanksd for the tip on water content. This site:

http://www.aclens.com/lens-materials.asp

contact lens Materials & Water Content

tells us there are only 4 catagories:

hi-lo water content
ionic vs. nonionic water


It says that Biomedics55, Acuvue and Acuvue2 are in the same
catagory- "high water content - ionic"

So my guess is I can wear Acuvue or Acuvue2 if I'm already wearing Biomedics55

Acuvues of course ARE "inversion marked" wheras Biomedics aren't, which is THE problem I'm trying to solve!
Thanks