[Yardstick]

I did some quick googling and it seems they are using the same technology as the glasses mentioned earlier — i.e. passive notching rather than video saturation of colors.

[KarlInOhio]

I would love to be able to try them out for a few days without having to pay for them and ask for a refund if they don't help. $350 is a little expensive. I would also like a non-sunglasses version which would have 100% transmission in the non-notch wavelengths. I guess the lens would look blue for a notch in yellow.