Mike Wallace wrote:

> I am actually considering getting some small bifocal type lenses to glue into my mask.

Mike,

Do you need reading as well as distance glasses? I suspect you only need
reading glasses (correct me if I'm wrong) in which case you really only
need the lens in the left lens of your mask, after all, you are only
going to use it to read your instruments which (usually) are on that side.

Anyway, that's what I do.

Cheers,

Christian