My Rudy Project Rydons have polarized lenses. They are really good when the setting sun is glaring off the road, and useful whenever it's sunny. I don't have any problem seeing my Garmin, or my older Sigma bike computer, but I've seen others complain that their polarized lenses blocked the display. I've seen posters on BF say that polarized lenses make it hard to see wet spots on the pavement, but it seems okay to me.