
I bought these to complement my computer glasses. My eyes need special glasses for an 18" monitor. However, I didn't get the blue tinge from the computer glasses that I get from regular glasses. The clips were well packaged. in their own nice case with extra handles and a polishing cloth. The presentation is just as i would expect from an optician.they are strong,well made and fit into the cheap plastic frames i have.on subjective results like pain and eye strain i am skeptical but that is my subjective opinion i have these have only been a day, but the temp of the monitor looks to me the same as looking at it through blue tinted optical glasses.. blue.. And I think there's less stress when I have one of those big, mostly white windows open open my monitor. So far it's good. Exactly what I wanted. The flip function works well but I thought what's the point? Unless I need a dose of blue. But now I remember that I can turn them around to edit the photos a bit. when I want the colors on the monitor AND printed copies (with a bifocal lens, ha) to be accurate. So I'm glad I didn't pay for the expensive blue tint on computer glasses. For around $20 just buy them and see them. Maybe save your eyes. Oh yeah, and check it out for yourself. I think (again subjectively, but) my eyes found it easier to ride at night with the blue tint on my other glasses. I can't test this product while driving, but I think it can help with the blue light from all those new LED headlights and streetlights that are hitting the road.

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