Top critical review
they dont block blue light.
Reviewed in the United States on October 9, 2018
These block at best UV light. they provide a blue colored light and a test strip to test the glasses with. these work because the light source has UV light. screens don't have UV light that is why when you hold the test strip to the screen that you look at nothing happens. these glasses are pointless unless you are in the sun looking for UV light protection. waste of money.