Well that appears to be a thing exclusive to your area, 'cause I haven't seen anyone in my area with Yellow-tinted glasses around here 
) (and I've been looking into getting a prescription set of Gunnars, and it's a very select set of stores that sell them). I also haven't had anyone tell me that I can get new lenses tinted in that very specific yellow when I updated recently...
You don't need tinted lenses to help with screen glare. My lenses are clear and when I had to renew my prescription around Christmas two years ago it was an optional extra I could have included with the lenses I bought with my (then) new glasses, similar to having the lenses thinner rather than there chunky normal size...
It's nothing new and the glasses I had before my current ones had the same 'coating' (I'm assuming). I pretty much only play sc2 when I'm not working etc and I don't get eye strain unless I'm just playing too long. Which is not something you can get rid of with fancy 'gamer glasses'.
On of the best things you can do to reduce eye strain is look at distant objects around your room when ever you can etc etc etc not buying silly tinted glasses with cheap nasty looking frames.
I don't think you QUITE understand the point of these glasses...
The "magic's" in the Yellow tint. Most LED-lit (AKA Most monitors on the market atm) use a slightly blue-tinted LED Back/edge light, which causes massive eye-strain. The Gunnars glasses are tinted a specific tint of yellow to counter this tint of blue, and it seems to work. These aren't to reduce Screen glare (of which I have no experience...do you use glossy or Matte finished monitors). Their primary focus is to reduce the eye strain caused by the blue backlighting, and before you say it doesn't work, as I said before Glass Blowers have been using this same technique for years to keep from blinding themselves.
From what I've read and seen of these glasses, yeah they are tinted, but some of the things they shout about being great and good at, you can get with standard non-tinted lenses. I know, I've had them for years and don't suffer from eye strain/head-aches etc etc while using my PC.
Sure, maybe the tint makes some difference to some people (everyone is different), like tinted glasses help some people read off white pages (something I've tried)... but they are nothing special and labeling them 'gaming glasses' is hilarious and dumb, not to mention the frames are so cheap and nasty.
I've been wearing prescribed Gunnars for about 3 years now. They work.
I've been wearing standard prescribed glasses for about 13 years and since the olden CRT times havn't ever had a problem with eye strain from looking at a screen for too long.
