Have you ever heard of blue light? Maybe not, but you’re mostly likely being exposed to it right now by looking at a screen on your computer, tablet or smartphone.
Yes, the digital devices we have become so dependent on may actually be harming our eyes. That’s because the screens on these digital devices, along with fluorescent lights and even the sun, are actually emitting a harmful wavelength of light.
Effects of Blue Light
This so called blue light is harmful because it can penetrate all the way to the back of your eyes, which is unlike most wavelengths of light. That doesn’t mean your eyes only see things in blue, but it does mean that over time you may have a greater risk for eye diseases like macular degeneration. [Read related article on why the sky is blue.]
You may be asking why the worry about blue light now–especially if the sun emits it, too. While that’s true, we used to come inside at night and not be exposed to blue light at night. Now, society has morphed into a 24/7 digital society and our exposure to this harmful light is fairly constant all day every day.
Protecting Your Eyes
You can protect your eyes in a couple ways. The main way is to limit your screen time. If, however, you’re constantly attached to a screen, you should look for a lens solution that filters out the harmful blue light before it reaches your eyes. UNITY lenses are available with BluTech technology to do just that. The good thing is that these lenses don’t distort color and actually relax the eyes. [Learn more about UNITY lenses.]