Have you ever seen the visible light spectrum? The colors range from purple, blue, green, indigo, violet, orange, yellow, and red. These are also the colors sunlight is made up of. When they are combined, it becomes the white light we are able to see. Each light on the visible light spectrum has a different energy and wavelength. For instance, rays that are on the red end of the visible spectrum have longer wavelengths and less energy while waves on the blue side have shorter wavelengths and more energy. Keep reading to see how you are exposed to blue light more often than you probably think.
What is blue light?
Blue light is a range of the visible light spectrum that has a wavelength between 400-495 nanometers. The short wavelengths contain higher concentrations of energy than light with longer wavelengths (i.e. white light). Sometimes, the visible light that our eyes can perceive contains blue light rays which, in turn, exposes our eyes to a higher amount of the short, highly-energized wavelengths we previously mentioned. When you stare at a screen for multiple hours, whether it is a cell phone, desktop screen, television, or tablet, you are being exposed to blue light. Blue light exposure from screens can be small in comparison to the amount you’re exposed to from the sun. However, there is concern that long-term exposure can affect your eyes because of the close proximity of the screens and the length of time a person spends looking at them.
How Can I Protect My Eyes from Blue Light?
If you are constantly exposed to blue light from using your smart phones, a tablet, or a computer, there are a few measures you can take to decrease the exposure, those are:
If you’re concerned about protecting your eyes from blue light exposure, contact an eye care professional to figure out which options are best for you and your family. Our doctors and staff can help you navigate any issues or questions about your eye care. We offer a wide range of vision products and services in Biloxi, Mississippi and the surrounding area.
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