I've been testing new glasses for the past few years; as they have now reached the market I thought I'd write about some of their features, as they have improved my vision while skiing.
Anti-fog coatings I've always had difficulties with fogging; I've tried every anti-fog treatment I could find, and all failed. Goggles with a fan helped, but not enough. The anti-fog coating on my test glasses works! Every few days I need to turn on the fan for a few minutes, but my batteries now last weeks between charges.
Darkening lenses I've never liked these, too "hollywood". But the treatment on my test glasses increases contrast; I can see road signs much further away. Likewise, I can see the variations in the snow better -- even in flat light. I tried identical lenses for skiing, with and without the darkening. No contest, much better with the increased contrast! This particular treatment was developed for older folks (I'm 76) as it's supposed to help counteract declining vision. BTW, these adjust slowly (5+ minutes); I'd prefer faster, but they still help a lot. So, not "too hollywood".
Anti-glare coatings I'm not particularly sensitive to glare. While I have sunglasses I rarely wear them. But even for me, the test lenses are better at night.
Digitally-cut Eyeglasses are normally cut plus/minus 0.25 diopters, as few can see smaller differences. However, astigmatism can make you see them; I was unhappy with a 0.10 diopter error. If you have astigmatism you may be too. This technology allows plus/minus 0.05 and makes it possible to cut both sides of the lens, allowing much better progressive lenses.
The above features are part of the Essilor Ultimate lenses, which is what they named the lenses I've been testing. This happened because I wrote a review of some new lenses a few years ago; it was forwarded to the R&D people who provided me with a new set -- which I also reviewed. It continued.
Smith's Chromapop The Blue Sensor Mirror lens I used in the past have a reflective coating that removes the light needed to darken the lenses. My new Storm Yellow Chromapop lens allows it through, so I get better light (and contrast) adjustment as the light changes during the day. I don't use any darker goggle lenses at all; the darkening of my glasses is enough for me.