Hd clear medical edition
Blue light filter: But too much exposure to UV causes a painful sunburn — and even worse, can lead to skin cancer. These rays also can cause sunburned eyes — a condition called photokeratitis or snow blindness. But ultraviolet radiation, in moderation, also has beneficial effects, such as helping the body manufacture adequate amounts of vitamin D.
It’s no surprise that nearsightedness is the number one eye issue in the world right now. In 2016–2017, we spent an average of 10.4 hours on our devices a day. It’s why many if not most of us deal with eyes that feel “shot” — dry, itchy, sometimes accompanied by a headache, what’s occasionally called “computer vision syndrome”. Different age levels require different levels of protection. Children under the age of 14 who use tablets and phones with high energy light are at special risk. Until 14, their corneas aren’t fully developed, and lack the protection of adult eyes — especially if they’re constantly in front of a device. Increased and prolonged exposure to HEV is a contributing factor to increased diagnoses of nearsightedness among children.
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. See a few more details at Blue light filter iPad.
Eye tip: This one should come as no surprise – the food we put in our bodies plays a vital role in our health. You want to be sure you’re eating foods with plenty of nutrients including omega-3 fatty acids, Zinc, Vitamins A, C, & E. Here are some of the foods that contain these vision-enhancing nutrients: Omega-3 Fatty Acids, which can help to reduce the symptoms of dry eye, can be found in several natural food sources including salmon, mackerel, tuna, walnuts, chia seeds and tofu.
Like ultraviolet radiation, visible blue light — the portion of the visible light spectrum with the shortest wavelengths and highest energy — has both benefits and dangers. Here are important things you should know about blue light: Blue light is everywhere. Sunlight is the main source of blue light, and being outdoors during daylight is where most of us get most of our exposure to it. But there are also many man-made, indoor sources of blue light, including fluorescent and LED lighting and flat-screen televisions. Most notably, the display screens of computers, electronic notebooks, smartphones and other digital devices emit significant amounts of blue light.
What PERFECTSIGHT eye care screen protectors and eyeglasses do? PERFESIGHT eye care protectors (HD Clear Medical Edition or Matte Anti Glare Medical Edition) could blocks more than 55% of the blue light into eyes especially in about 450nm wavelength and reduce the damage of blue light to the eyes, really to be best blue light filter for deigital device. PERFESIGHT blue light blocking glasses could filter about 70% of the blue light from your phone,tablet, computer’ screen. Eye Care screen protectors tested by specially AMERICAN SOLAR LIGHT. Find even more info on www.perfectsight.co.