I have a couple of pairs of Gunnar glasses (non-Rx), both amber. I like them and they do seem to reduce eye-fatigue while enhancing color and contrast on the LCD screen. I think they are better for gloss screens rather than matte. The only caveat with them is I find the bridge piece sits too high making them look funny wearing them (but maybe it's just my face that looks funny!). I tried bending the nose bridge a bit but I'm afraid of snapping them off. Also I find they smudge easily. Keep a lens cloth near by. I plan to get clear version for work use.
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