#Blue light filter glasses full#

Our daytime lenses are optimized to let just the right amount of beneficial light through while blocking the harmful spectrums.Ĭonversely, Night Swannies blue light blocking glasses block over 99% of blue light, which is crucial for helping your body slip into a natural sleep rhythm by promoting melatonin production. This is considered the most harmful part of the spectrum. Day Swannies, however, block 98% of blue light at 400 nanometers, graduating to 45% at 450nm. You’ll find most clear-lens blue blockers and computer glasses on the market only block blue light up to 420nm. They allow some blue waves in the range of 450-500nm to get through, as exposure to this range during the day is important for giving your body the signals that it is daytime and that it should be awake.

#Blue light filter glasses full#

However, in the hours before bed, you need to block the full spectrum, which is what our Night Swannies blue light blocking glasses are made for.įor example, a pair of blue light blocking Day Swannies block blue light between 45-98% of blue light between 400-450nm, which studies have shown is the most harmful part of the spectrum.

When shopping for blue light protection glasses, it’s essential to find the details about not just how much blue light they block but also what range of the light spectrum they block as it pertains to the time of day you’re wearing them.ĭuring daytime hours, some ranges of light are beneficial to our health, so it’s important that some blue light is still allowed through the lenses in daytime hours.