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I have the Nikon blue light blocking coating on my prescription glasses, and they do work. I have much less eyestrain now than I have had in the past when working with screens of all types. I previously had the Essilor blue blocking coating on my previous glasses as well.
Prior to that, I was doubtful that it worked but, I'm a believer in them now. I don't have any experience with the non prescription coatings.
One thing I hated with the essilor coating was that in flash photos, there was a quite obvious yellow tint that showed. I haven't had the same issue with the Nikons.
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