Joined: Aug 2008
Posts: 13,140
Likes: 2,162
From: Ann Arbor, MI
Bikes: 15 Kinesis Racelight 4S, 76 Motebecane Gran Jubilée, 17 Dedacciai Gladiatore2, 12 Breezer Venturi, 09 Dahon Mariner, 12 Mercier Nano, 95 DeKerf Team SL, 19 Tern Rally, 21 Breezer Doppler Cafe+, 19 T-Lab X3, 91 Serotta CII, 23 3T Strada
I have a Dux Helm, and I like it quite a lot. I also wear glasses.
The main issue with the lens and eyewear is the space behind the lens. It really isn't much, and wrap style frames (or sports style) which are contoured to the head, work best. Glasses that are flat across the face will almost certainly stick too far out at the temple piece joint.
Face shape is important, too, so you'll just have to try the fit out.
If they do fit, the Dux Helm is a great helmet, and I like being able to quickly change lens tints to suit conditions. The only partial down side is that there is no internal channeling, so it's not as cool as some other helmets. Mine is an early model, so I don't know if that has been addressed. Anyway, as I said, for spring, fall, and winter rides it's pretty ideal.
Another couple of helmets to look at are the Casco Speedairo and the Giro Air Attack. Both have the lens mounting on the leading edge, so probably offer a bit more space behind the lens.