Blue light glasses are sold as shields for tired eyes. Ads promise protection from screens, better sleep, and long-term eye ...

Blue light is part of the visible light spectrum. Exposure to blue light can affect sleep quality, alertness, hormone production, mood, and more. Blue light could also contribute to headaches, but ...

We live in a screen-dominated era. From smartphones to computers and gaming consoles, digital devices are integral to modern life. This constant immersion, while convenient and connective, ...

As SELF has previously reported, visible light occupies wavelengths between about 380 and 700 nanometers (nm)—blue light falls between 400 and 500 nm on that spectrum. Effective blue light eyeglasses ...