Kamil Macniak/Shutterstock.comIf you’ve shopped for a new pair of prescription glasses lately, you’ve probably seen pitches for blue-blocking lenses that supposedly cut down on eye strain and reduce sleep disruptions that come from using digital screens. But do they live up to the hype? Let’s take a look. How Do Special Glasses Reduce Blue Light? There are several claims about the benefits of glasses that filter out blue light (which we’ll cover below), but first, let’s take a look at how the lenses filter out blue light. It’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. Usually, not all blue light is blocked, and the amount of blue light reduced varies depending on the type and manufacturer of the lens. Gritsalak Karalak/Shutterstock.comWhen you’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). You’ll see the world with a more yellowish tint. Do Blue Light Glasses Help With Eye Strain? To determine the effectiveness of blue light filtering lenses, you have to separate various claims about them. One common claim is that they reduce eye strain while looking at screens on devices such as smartp… Click below to read the full story from How To Geek
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