TheFragiletoothI thought smaka used gunnars to help reduce eyestrain/the impact of his color blindness. Maybe he'll make an appearance here.
Yeah, he used them. I think he strictly uses them for snowy maps for his color blindness. I'm pretty certain he only used them for the snow maps on LAN and didn't use them otherwise. It made it a little more bearable for him, but that's about it.
Pretty much this. They do help with eye-strain but I don't typically have issues with eye-strain. They do somewhat help me discern red from blue on maps with overly bright textures (mainly snow maps) but they don't seem to have any effect on colors for me on other maps, so I haven't used them since coldfront/viaduct were in rotation.
If you have eye-strain issues, they definitely do help, but if your vision is degrading, I would sooner recommend you see an optometrist and get lenses to correct the issue. If you have a prescription, you can get glasses from somewhere like http://www.zennioptical.com with yellow tinted lenses, etc. to help relieve eye-strain.