However, if that hypothesis is correct, then you need exposure to both blue light and warm, yellow light to function properly throughout the day. If you stay up late looking at your bright bluish tablet or smartphone, you might be sending the wrong signals to your brain, telling it to be alert when it should be getting sleepy. The hypothesis behind artificial blue lightвЂ™s sleep-disrupting nature is that the EarthвЂ™s natural day and night cycles regulate our internal body clocks, making us energized during the daytime when the sunlight is brightest and naturally sleepy at night when the light is dim. But luckily, in the study the company cited, the melatonin levels of the participants recovered to normal levels 15 minutes after they stopped looking at screens-no special glasses required. LensCrafters offers a solution, claiming that its blue light-filtering lenses can help prevent those disruptions. International prescription eyeware retailer LensCrafters claims that blue light can disrupt your sleep by preventing the secretion of melatonin, a hormone that naturally makes you sleepy.ДЄ 2019 study backs up this claim somewhat.

Do Blue Light Glasses Prevent Sleep Disruptions? Instead, the AAO recommends reducing eye strain by reducing screen time and taking regular breaks while using your digital devices. In fact, the organization cites a recent study that suggests there is no reduction in eye strain with blue light-filtering lenses versus completely clear ones. One common claim is that they reduce eye strain while looking at screens on devices such as smartphones, tablets, and computers.ДЄccording to the American Academy of Ophthalmology (AAO), there is currently no scientific evidence that light from digital screens damages eyes or causes strain. To determine the effectiveness of blue light filtering lenses, you have to separate various claims about them. Do Blue Light Glasses Help With Eye Strain? YouвЂ™ll see the world with a more yellowish tint.

When youвЂ™re wearing blue light-filtering glasses, what meets your eyes is yellow-colored light (a combination of the red and green light that comes through). Usually, not all blue light is blocked, and the amount of blue light reduced varies depending on the type and manufacturer of the lens. ItвЂ™s pretty simple: Each blue light-blocking lens is tinted in a way that lets in more red and green light and less blue light. There are several claims about the benefits of glasses that filter out blue light (which weвЂ™ll cover below), but first, letвЂ™s take a look at how the lenses filter out blue light. How Do Special Glasses Reduce Blue Light?

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