Thankfully, even NASA is invested in helping with this! Why Do Computer Screens Emit so Much Blue Light? The best thing to do is to find ways to optimize the blue light intake during the day and regulate the exposure as the sun goes down. It seems as though blue light is both extremely beneficial and extremely dangerous. Hong, a doctor of Ophthalmology at Fooyin University in Kaohsiung, believes that the combination of the blue light emitted from the cellphone, and the ultraviolet light emitted by the sun led to this condition. In recent news, a Taiwanese woman developed a hole in her retina after years of using a smartphone outdoors and Dr. Unsettling the circadian rhythm paves the way to many of the prevalent diseases experienced in the 21st century, such as depression, anxiety, and obesity.Īlthough inconclusive, scientific studies also suggest a connection between blue light exposure and macular degeneration, which the leading cause of vision loss in the US! As the years go by, the natural protective layer starts to become more and more permeable to UV and HEV rays that easily penetrate to the retina due to their shorter wavelengths.
This combination has resulted in consequences to the natural circadian rhythm – or the master clock – of the human body. The problem at hand is that 90% of our time is now spent indoors under artificial light, thereby resulting in a deficit of direct sunlight during the day and overexposure to bright light in the evening. However, melanopsin is less sensitive to lower energy light in the visual spectrum, which allows for the production of a sleep-inducing hormone called melatonin as the sun goes down. The bright daylight activates melanopsin, thus synchronizing the internal clock to raise alertness, boost reaction times, and mood. That’s why a blue-light-sensing protein called melanopsin exists in human eyes. On an evolutionary scale, not long ago humans lived outdoors and were ruled by the sunrise and sunset. As such, it’s fair to ask, how bad can blue light truly be? However, the biggest source of blue light is the sun, which is known to be crucial in many ways. Various technologies that light up the displays of the electronic devices use wavelengths in this range.
It’s crucial to notice blue light rays have the smallest wavelengths (380 nm to 500 nm) of all other colors in the visible spectrum because they have the highest energy photons. Now, back to the visible spectrum and the colors of the rainbow: Red, Orange, Yellow, Green, Blue, and Violet. Fast forward to 2018 when the Apple A12 Bionic chip was released containing 6.9 billion transistors manufactured using a 7 nm process. What else is measured in nanometers? Transistors! Back in 19, the smallest transistors were 600 nm and 350 nm, respectively. Somewhere between the two extremes exists the very tiny fraction human eyes can detect, which is known as the visible spectrum, with wavelengths in the range of 400 nm to 700 nm. What Is Blue Light and Is It Really Evil?Ĭonsider light as electromagnetic radiation with an enormous range in terms of frequency, energy, and wavelengths – from gamma (as tiny as 1 trillionth of a meter) to sub radio (as big as the universe since there’s no theoretical upper limit). That’s why, below, we’ve endeavored to outline everything you need to know regarding blue light and blue light filters. While eye fatigue and sleep trouble may be the most commonly experienced problems, many other health issues are linking to blue light exposure. That’s high energy visual (HEV) light ready to disrupt everyone’s sleep. You’ve seen that when people use their electronic devices in a dark environment, they are covered in a blue glow. What you may not be aware of though, is the impact it has on your vision, your sleep, and your health, as well as how you can immediately protect yourself by using a blue light filter. What is blue light? Have you noticed that your eyes get tired when you spend too much time in front of the computer? Sure you do, since you are the one who has to deal with the headaches, the super dry eyes, and even blurred vision at times. Or discover ViewSonic’s monitors engineered with ultimate eye comfort here.
#BREAKS FOR EYES MAC HOW TO#
Read our quick guide on how blue light affects your eyes and how to protect your vision. But with a couple of simple precautions, there’s no reason to fear your screen. Unfortunately, that blue light can cause eye strain, interrupt sleep, and more.
That light affects eye health and sleep, so it’s a good idea to reduce excessive blue light with options like a blue light filter for your PC. Modern screens produce a lot of blue light.
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