I lost my Tifosi fotochromatic sunglasses last week, have no idea what happened to them. (Hopefully they'll turn up again.) I've been using Tifosis and Native eyewear for the past 3-4 years pretty happily.
Didn't find a replacement model that I really liked, but still needed eye protection, so on a whim, since I was buying stuff on Amazon prime, ordered some Dewalt safety glasses. Figure I could at least use them for minor home repair tasks even if they suck on the bike.
Was more than a bit surprised to find they fit as well (slightly better actually) on my face than the Tifosis, and look totally fine. Used it on a sweatfest ride, and didn't notice any problems whatsoever. Although I will add that I tend to sweat so much on the hard climbs that optics are pretty worthless to me - I always get a few drops of sweat onto the lenses at some point, at which point high quality optics go out the window.
Not bad for $4.15 shipped. The nice thing about this frame for folks who ride TT bikes more than standard road bikes (triathletes mainly), is that the frameless rim means that nothing interferes with your vision when you're tucked into your aerobars with the head tilted down. Works great.
I'm still shopping for a pair of sunglasses I'm gonna love, but honestly, I'm starting to seriously consider just getting multiple pairs of safety glasses since I do seem to lose at least one pair every year.