There is nothing greater than a prescription mask to show you what you have been missing.
. My mask even has bifocal lenses.
Full service dive shops can usually get your mask if you give them your prescription. But the mask must be able to fit your prescription. Sometimes the guy that makes the lenses also supplies the mask to insure that the prescription can be installed, but make sure that the mask fits you before you commit to the purchase.
However, I have had a problem trying to update my mast to my latest prescription because the optometrist that made my last prescription mask does not make them anymore, and I had tried two suppliers and they have not been able to do my prescription that requires prism corrections, even though my optometrist was able to do it.
I would appreciate any information about my problem, if someone who knows about making prescription masks with prism adjustments.