With the vast amount of technology used, from smart phones, to tablets, to computers, there is a huge concern over our daily exposure to HEV (High Energy Visible) light or blue light. Extended exposure can lead to headaches, blurred vision, red, burning or aching eyes, and other symptoms of Computer Vision Syndrome. It can also lead to Macular Degeneration and other serious eye conditions. But what can you do about it? Resting your eyes by taking a break from your computer or other electronic device is one way of preventing Computer Vision Syndrome. Another potential solution would be to get fitted for Computer Glasses. But what are Computer Glasses and how do they help?
We are all familiar with sunlight, and many of us are aware that sunlight consists of a variety of colours, both visible and invisible to the human eye. Each of these colours represents a different energy wavelength. Most of us should be familiar with the effects of Ultraviolet (UV) rays on our skin. If you have made the mistake of looking directly into the sun, or even snow on a sunny day, you will also be aware of what UV radiation can do to your eyes. But there is another light that is becoming almost as much of a concern, and that is Blue Light.
Perhaps you’ve heard the term “blue light”, but aren’t sure if it affects you or not. There are definitely some misconceptions about blue light, where it’s found and the potentially harmful effects, so hopefully this post can help to shed some ‘light’ on the situation.
Where is blue light found?
Blue light is everywhere. Smartphones and other digital devices have been targeted as the main blue light culprits, but the truth is, sunlight is the main source of blue light. Being outdoors during daylight is where most of us get the majority of our blue light exposure. There are also many man-made, indoor sources of blue light, such as fluorescent and LED lighting and flat-screen televisions.