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These are non-prescription blue light blocking glasses with a matte black plastic frame and spring-loaded temples. The blue-tinted lenses use a blue-light blocking polymer and carry a UV400 rating, so they cut both screen blue light and ultraviolet. They suit people who spend long hours in front of screens or want a cheap pair to keep at a desk. Against typical blue light glasses, the spring hinges and UV400 claim are the main selling points; the frame is basic plastic and the lens is not magnified.
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These blue light blocking glasses have lenses made with a special blue-light blocking polymer. They also provide UV400 protection and are designed to reduce eye strain.
The frames are matte black plastic with spring-loaded temples. The lenses are non-magnified, so they don't change how things look in size or focus.
