I bought them because I have the worst light at work and I use a multi monitor computer there a lot so I have a lot of glare which gives me a headache for an hour prepared. I'm not exactly sure what this little test is supposed to do exactly, I tried a little test and don't think it was necessary to see the difference. After wearing them for a while I could really say they work. I also have a pair of pink tinted lenses which helped but distorted the color. Try them, they're inexpensive.
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