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As much as we may not want to admit it, the world is a dangerous place, and the number of things that can cause us harm is sometimes surprising. We know that some foods can lead to disease and that staying out in the sun for too long can result in very red and painful skin, but did you know that there are even some types of light that can be worrisome, especially the impacts of blue light?

In recent years, health professionals have become acutely aware of the damaging effects of blue light, a specific wavelength that’s a part of the spectrum closer to UV light. We can see it with the naked eye, but due to the way it behaves within our bodies, it’s not recommended that we expose ourselves to it often. What damage can it cause and how do we ensure that we aren’t constantly surrounded by it? Keep reading to learn more.

When you first think about it, it’s slightly odd to consider that a specific wavelength of light could cause any harm to the human body. However, blue light can actually lead to several serious eye conditions including macular degeneration, a disease where one’s central vision slowly deteriorates. In some extreme cases, this can even lead to total blindness. At the very least, overexposure to this wavelength often brings with it symptoms of eye strain and fatigue. If you’ve ever experienced a headache, back pain, or dry eyes and blurry vision after spending hours on the computer, it’s likely that the blue part of the light spectrum is to blame. 

Another aspect to consider is that our bodies are actually designed to react in certain ways when this type of light is present. Our natural sleep/wake cycle, called the circadian rhythm, is largely regulated by a chemical called melatonin, and when we don’t make enough of it, it can lead to difficulty when sleeping. Oddly enough, this exposure causes the body to stop producing melatonin, making those late nights on your phone even more problematic to your health.

Ways To Set Limits

If you want to be proactive about reducing your exposure to this harmful light, it’s important to understand where it comes from. While the sun does actually emit some blue wavelengths within the full spectrum, the bulk of the light reaches us from digital devices. Computers, tablets, smartphones, and even your television screen all send out blue light into your environment. Rather than swearing off all technology, what can you do to safeguard your eyes and your health?

Most modern devices have a night option which casts a yellow tint across the screen, limiting the amount of blue light that is transmitted. Consider using this during the times when you absolutely have to be on a screen, especially as it gets closer to your bedtime. When possible, try avoiding digital devices in the evening, as they can impact your melatonin production and make it more difficult to fall asleep.

Above all else, one of the best ways to avoid the effects of this light wavelength is to use glasses specifically designed for this type of protection. Similar in idea to the night mode that’s found on many electronic devices, these glasses feature lenses with a slight yellow tint. They work to block up to 99% of your exposure and can assist in keeping your eyes comfortable for hours at a time. If you don’t typically wear glasses, this could feel like an unusual solution, but rest assured that even those without the need for vision correction can still benefit from this eyewear.

If you’re wondering how to buy glasses online right now, there are plenty of services that deliver to your door. While finding the right pair of glasses is crucial to minimize strain, it’s important to give your eyes a break. If you spend a lot of time in front of a computer screen during the day and use your phone at night, you may need prescription glasses sooner than you think!

Keep in mind that there are benefits to blue light as well, including offering a mental boost and helping to lift your mood, so you shouldn’t necessarily avoid it at all costs. However, consider the areas in your life where your exposure is high and see if you can work to reduce it just a bit. You’ll likely notice that you sleep much better at night!