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What is blue light? Blue light is in the middle of the light spectrum ranging from 380-500nm (nanometers). It is a visible light with the shortest wavelength and highest energy. What is different from blue light, compared to other visible light colors, is that blue light can reach all the way to the retina (the inner lining of the back of the eye).
By taking the extra precaution, you can protect your eyes from potentially harmful blue light from computer screens and other digital devices. To determine if blue light filters are right for your prescription glasses, you should consult with your optician or ophthalmologist
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