What Is Blue Light

Its wavelength is in the blue portion of the electromagnetic spectrum which is roughly 400 500.

What is blue light. It s also no more damaging than blue light from the sun dr. The blue light suppressed melatonin for about twice as long as the green light and shifted circadian rhythms by twice as much 3 hours vs. There s a lot of conflicting evidence however about exactly how harmful or not it really is. Too much exposure to ultraviolet light from the sun increases the risks of eye diseases including cataracts growths on the eye and cancer.

In another study of blue light researchers at the university of toronto compared the melatonin levels of people exposed to bright indoor light who were wearing blue light blocking goggles to. Blue light from computers will not lead to eye disease. Blue light counter terrorist subunit a 1970s us counter terrorist subunit. Blue light itself is a short wave blue light in the spectrum of colors visible to the human eye.

Blue light has been linked to all sorts of issues from causing digital eye strain to making us blind. Blue light exposure may increase the risk of macular degeneration. What is blue light. Blue light is the visible light at the blue end of the spectrum.

Blue light pyrotechnic signal a firework composition used for night time signaling and illumination military and emergency services. Although not as energetic as ultraviolet uv light there is concern that high doses of blue light might cause more cellular damage than longer wavelengths of visible light which you see as the colors red through green. It is true that overexposure to blue light and uv light rays from the sun can raise the risk of eye disease but the small amount of blue light coming from computer screens has never been shown to cause any harm to our eyes. Cherenkov radiation the physical phenomenon responsible for the characteristic blue glow in nuclear reactors.

Blue light has a powerful effect on your body clock called your circadian rhythm. Those two simple words may well be causing you grief in a screen heavy society intent on getting you to work at a laptop take breaks by scrolling through social media on your. We know less about blue light. The fact that blue light penetrates all the way to the retina the inner lining of the back of the eye is important because laboratory studies have shown that too much exposure to blue light can damage light sensitive cells in the retina.