MacBook Pro 16 screen protector: On the other end of the visible light spectrum, blue light rays with the shortest wavelengths (and highest energy) are sometimes called blue-violet or violet light. This is why the invisible electromagnetic rays just beyond the visible light spectrum are called ultraviolet (UV) radiation.
Your mobile devices: iPhone users can use Night Shift (under Settings > Display) and the less-known Color Tint feature; Android users can download Twilight for their screen-dimming needs. If you can’t help bringing your phone to bed, wear HEV blocking glasses, put a blue filter screen on your phone, or place it face down while it plays; play a movie or ambient white noise, or podcast clips to listen to while falling asleep. Or better yet, drift off while reading an analog book: It will force your brain to imagine, and that effort will wear you out more than the instant simulation brought by the visual nature of our devices.
Blue light is a range of the visible light spectrum, defined as having a wavelength between 400-495 nm. This short wavelength means that blue light is a type of HEV (high-energy visible light), defined as having a wavelength between 400 and 450 nm. Because the blue/violet band of the visible spectrum has a particularly high frequency. Blue light isn’t some special form of light that only comes from computers and LED lights – it’s actually all around us. In fact, sunlight is the main source of blue light. When you walk outside during the daytime, you’re exposed to blue light. Explore extra details at What is blue light filter.
Avoid dry eyes. As stated above, the primary reason staring at a computer screen is so harmful to your eyes is that you tend to blink less. To combat dry eyes, keep artificial tears nearby and use them when necessary. Other factors that can cause dryness include humidity-controlled offices that pull moisture out of the air and, during the winter, heaters. A desktop humidifier can help introduce moisture into your environment and give your eyes some relief.
Blue light exposure may increase the risk of macular degeneration. 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. This causes changes that resemble those of macular degeneration, which can lead to permanent vision loss. Although more research is needed to determine how much natural and man-made blue light is “too much blue light” for the retina, many eye care providers are concerned that the added blue light exposure from computer screens, smartphones and other digital devices might increase a person’s risk of macular degeneration later in life.
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