I’m sure you’ve heard at some point about blue light or blue light blocking glasses. Various companies have started to make blue light blocking glasses, and you can even have them made with your prescription. But what are they for?

So I had to learn a little more about light LOL. Sunlight contains red, yellow, green and blue light rays, each with varying degrees of wavelength and energy. The red light rays have longer wavelengths and thus less energy, and the spectrum of light just beyond red is infared. THey’re invisible rays but still warming (think of the heat lamps at the restaurant keeping your food warm).

The blue light tends to have the shortest wavelength, yet the strongest energy. Where blue light rests the most is in device screens (computer, TV, phone, etc.) that we’re all on all day, every day. The eye is capable of blocking UV rays from reaching the retina, which is light sensitive, but the eye is not as good at blocking blue light as all of it passes through the cornea and to the retina. Too much blue light exposure may lead to macular degeneration and could eventually damage your vision. If you are able to block a good amount of this blue light with special glasses while using devices or watching TV, then you could be doing yourself a world of good for your eyes. No, they won’t change the way you see things and yes they are still quite fashionable and most people can’t even tell a difference that they might not be traditional glasses.

Save your eyes, it’s cool to see stuff.