Blue Light Facts
DIGITAL DEVICES HAVE BECOME A NECESSARY PART OF OUR DAILY LIVES. CONCLUSIVE STUDIES HAVE SHOWN THAT THE BLUE LIGHT EMITTED FROM SCREENS CAN CAUSE A NUMBER OF SERIOUS HEALTH PROBLEMS. IN FACT, JUST OVER TWO HOURS A DAY SPENT ON YOUR DIGITAL DEVICE CAN LEAD TO HEADACHES, INSOMNIA, DIGITAL EYE STRAIN, AND POSSIBLE LONG-TERM RETINA DAMAGE. HERE IS SOME HELPFUL INFORMATION ON WHAT BLUE LIGHT IS, HOW IT CAN HURT YOU, AND HOW WEALTH SHADES CAN HELP.
WHAT IS BLUE LIGHT?
Sunlight is made up of a spectrum of colors including red, orange, yellow, green, blue, indigo and violet light. When all the spectrum of colors is combined, it becomes the white light we see. Each of these colors of light has a different energy and wavelength. Rays on the red end have longer wavelengths and less energy. Blue rays which are on the opposite side of the spectrum as red, have shorter wavelengths and more energy. The light that looks white can have a large blue component, which can expose the eye to a higher amount of wavelength from the blue end of the spectrum.
The sun is one of the largest sources of blue light that we are exposed to. While the exposure we receive from screens is small compared to the amount of exposure from the sun, studies suggest that over time, exposure to the blue end of the light spectrum could cause serious long-term damage to your eyes.
The concern is mainly due to the close proximity of the screens we look at and the length of time spent looking at them.
The largest source of blue light is sunlight. In addition to the sun, there are many other sources of blue light. Some of them include:
- Fluorescent light
- CFL (compact fluorescent light) bulbs
- LED light
- Flat screen LED televisions
- Computer monitors
- Tablet screens
Keep in mind, it is not only adults who can be affected by our digital devices. Studies are also now showing that children’s eyes absorb more blue light than adults from digital screens. According to the Vision Council adults have noticed their children have the following side effects after being exposed to a screen for more than two hours a day.
- Neck/shoulder pain
- Eye strain, dry or irritated eyes
- Reduced attention span
- Poor behavior
THE HARMFUL EFFECTS OF BLUE LIGHT
DIGITAL EYE STRAIN
Digital Eye Strain (DES)—also known as Computer Vision Syndrome (CVS)—is a group of symptoms associated with the overuse of digital devices. Its high-frequency blue light can stress out the retina causing poor eye health.
Symptoms of Digital Eye Strain are:
- Dry eyes
- Eye strain
- Blurred Vision
- Neck and shoulder pain
Melatonin is a chemical that makes us sleepy and helps manage our circadian rhythm and sleep-wake-cycle. As babies, we are taught to regulate our circadian rhythm by a strict lack of exposure to light during sleeping hours. The blue light we are exposed to at night is the same light source like the sun, so the continuous exposure suppresses the secretion of melatonin which is a key factor in telling your body it is time to sleep.
Most of us are up into the night and many times in front of our screens (staying late at work, watching TV, reading on our phone or tablet).
We expose ourselves to Blue Light way past the time that we’re supposed to receive it, which is once the sun goes down. Which is why blue light exposure at night is one of the reasons why some screen users have a hard time falling to sleep, staying asleep, and feel rested in the morning. A lack of restful sleep can also lead to a number of other serious health problems, not listed here.
Exposure to blue light can damage light-sensitive cells in the retina, causing changes that resemble those of macular degeneration, which can lead to vision loss. Eye care providers are concerned that the added blue light exposure from computer screens, smartphones, and other digital devices might increase a person's risk of macular degeneration later in life.
WEALTHY SHADES BLUE LIGHT BLOCKING GLASSES
Blue light drastically inhibits melatonin which affects mood, focus, and especially sleep patterns. Just 2 hours of blue light exposure a day can make it harder to fall asleep and stay asleep. Our glasses offer twice the protection so that you can enjoy using all your digital devices without worrying about eye strain, fatigue, or disrupting your sleep.
Wealthy Shades glasses offer superior protection from blue light because we use multiple layers of FDA approved blue light filter coating on both the inside and the outside of our lenses. Other leading brands only use one layer of coating on the outside, and that’s just not enough. We take the time to add additional coatings which provide UV Light Blocking and make our lenses Anti-Scratch, Anti-Reflective, and Anti-Glare.
Designed for comfortable daily wear with durable lightweight frames. Our low color distortion lens is optimized to provide the perfect balance between eye protection and viewing quality.