While the scientific discussion about blue light hazards continues, ZEISS BlueGuard incorporates the latest organic-chemical technology to make the blue light blocking an integral part of the chemical structure of the lens material. As a result, ZEISS BlueGuard Lenses block up to 40 percent of potentially harmful blue light in the wavelength between 400 and 455 nm. Based on proven UVProtect technology, ZEISS BlueGuard Lenses additionally ensure full UV protection up to 400 nm.
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