Price: Don’t assume that you’ll get better blue-light blocking by spending more: A July 2019 study in Optometry and Vision Science found no correlation between price and advertising claims ...

All light is measured in nanometers (nm), and blue-light wavelengths that can have the most impact on your melatonin levels (and thus affect your sleep) range from 400 to 500 nm, though blue-light ...

What is it: KITS Zircon Blue Light Glasses . What they offer: 1 pair of lenses with UV420 protection. It’s been a month since I got my first pair of glasses from the Canadian brand KITS.And so far, I ...

We’ve all read the reports: Blue light can play a role in sleep issues. It’s also been mentioned as a factor in skin damage, too.Fortunately, not only can you enable a blue-light filter on ...

Blue light has shorter wavelengths (around 400-500nm, as mentioned) compared to red light, which ranges from 620 to 750 nm. (Green light, which is also sometimes used for skin, falls somewhere in ...

Each participant did light therapy with a white light and a blue-enriched white light for two hours in the morning and two hours in the evening over the course of 11 weeks.