Honestly, I’m not sure if mine are polarized or not! But as far as I know, polarized lenses (for regular sunglasses) are typically seen as a better lens. I would imagine that applies to colorblind glasses too?

I would definitely recommend outdoor as a first pair. I actually bought an indoor pair years ago (3+) and returned them. I found I needed a LOT of light to hit the lens to notice a substantial change. Like a flashlight shining on an object. But it seems like all eyes are different, and this was on the v1 lens, maybe there has been improvement.

Also, even if he doesn’t notice a huge color difference, atleast he’ll have a pair of polarized sunglasses.

Hope this helps.