The Sources of Blue Light and How to Minimize Their Effects

Summary: Blue light can be found in a variety of places and can unfortunately be harmful to your health. Understanding what it is and where it comes from can help you reduce your exposure to the damaging light rays.


Growing up we many of us quickly learned about the dangers of sunlight for the eyes. Even if we are not looking directly into the sun, the effects of the sun’s ultraviolet rays give us sunburns and damage our eyes. Scientific research has taught us that there are numerous kinds of light rays, each with different wavelengths and corresponding energy levels. Those rays with longer wavelengths, such as red orange, contain less energy. Those with shorter wavelengths, such as blue and purple, contain more energy.


The topic of blue light has become popular over the past few years but some people may not actually be aware of what it is.


Blue Light Can be Found Indoors and Outdoors


Blue light is most commonly found in the sunlight. When we are outdoors we are naturally exposed to it. When not indoors, we can easily find blue light coming from modern TVs, computer screens, smartphone screens, and LED lighting. While the blue lights emitted from the sunlight might be much stronger than those emitted from devices in our house, the amount of time we spend using these devices coupled with how close some people get to these light sources can lead to eye damage.


Filter the Lights Out


An easy way to limit the potential damage from blue light is to simply use a filter to decrease the amount of blue light emitted. This can be achieved in a number of ways. There are software solutions that can either be downloaded or accessed directly through the settings on your device. These software solutions allow you to adjust how much blue light is coming out of the screen, essentially making the screen more orange.


If you do not have access to these software solutions, some manufacturers make filters that can be placed on top of screens or glasses that you can wear when you use your devices. Although you cannot change the strength of the filter, these methods can still help limit blue light exposure and decrease eye strain. Less blue light will lead to less fatigue and retinal damage.


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