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 are designed to block a ...

Adding a blue-light filter to your eyeglasses may not ease eye strain from computer work, protect the retina or help with sleep at night, according to a new review of existing research.

About one third of all visible light falls into the blue light category, which is also called high-energy light (HEV). Most blue light we are exposed to comes directly from the sun. But LED lights ...

Blue light glasses gained popularity over the past few years with the idea they protect our eyes against screen usage — but a new analysis shows they might not be as beneficial to our eye health ...

A new study concluded that blue light glasses probably have no greater effect on the eyes than non-blue light glasses, contradicting research that says they help with eye strain, sleep quality ...

Think blue light is hurting your sleep cycle? A new study suggests it can actually improve the overall sleep quality of older adults -- but only if they time it right. NY Post Composite Blue light ...