RGP materials?



I have the impression that there are at least 3 common
materials used to make soft contacts. Is this also true f
or RGPs? For RGPs is it strictly old/original and new/better?
or is it "it depends on the individual and their condition"
like soft contacts? different materials for different type of
lenses (torics, bifocals, etc.)?

thanks,
-Quick


.



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