What is Blue Light?
Blue light, as the name implies, is the visible light at the ‘blue end’ of the spectrum. Its wavelength, much shorter when compared to colors closer to the red side of the spectrum, hits our eyes at a higher frequency. And while we’re all naturally exposed to blue light from the sun, along with the other colors of the spectrum, prolonged exposure to ‘un-natural’ blue light sources may be harmful to the eyes.
Is Blue Light Harmful?
Studies have shown that blue light can compromise the body’s sleep cycle by suppressing melatonin production. This helps us stay alert and focused during the daytime, but it can interfere with sleep.
As mentioned earlier, the verdict is still out on eye strain and “protecting” your eyes from blue light. However, a recent study by researchers at the University of Houston College of Optometry, published in Ophthalmic & Physiological Optics, found that blue light emitted from devices could contribute to disrupted sleep cycles and an overall reduction in sleep quality.
In another study, researchers at the University of Toronto compared the melatonin (the hormone associated with control of the sleep–wake cycle) levels of people exposed to blue light who were wearing blue-light–blocking glasses to people exposed to regular dim light without wearing glasses. Both groups had mostly uniform levels of melatonin, suggesting that blue light is a significant suppressor of the hormone, in turn compromising your quality of sleep. It also suggests that shift workers and night owls could find protection in blue light blocking glasses.
How Can Blue Light Glasses Help?
Computers, televisions, phones, and tablets all emit blue light. Harmful blue light from screens signals our brain to stop producing melatonin. Without the production of melatonin, our sleep suffers. Our lenses block the harmful blue light thus helping you feel better.
Can You Wear Blue Light Blocking Glasses All Day?
In this multi-screen age, there's nowhere to turn without being subjected to blue light. The protective blue light coating is subtle and is easily applied to most glasses, even your everyday pair with no ill effects.
Other Ways You Can Protect Your Eyes from Blue Light
- Avoid looking at bright screens two to three hours before bed.
- If you work a night shift or use a lot of electronic devices in the evening, try wearing blue-blocking glasses or installing an app that filters the blue/green wavelength from your devices at night.
- Get a good dose of sunshine during the day, which will boost your ability to sleep at night.
Even with some of the evidence still developing, there is a very high reward with minimal risk in outfitting your favorite pair with Revant’s blue light blocking coating. Get your daily pair equipped with our blue light blocking treatment today. Already have a pair? We’d love to hear about your experience! Get in touch!