We live in a digital age, which means that most of us are leading increasingly digital lives. Research shows that more than 90% of people spend between 3 to 10+ hours every day on digital devices.1
Blue light is a component of visible light and is referred to as high energy visible light (HEV). It sits alongside ultraviolet (UV) light in the electromagnetic spectrum. Most people are aware that UV light is harmful to not only our skin but also our eyes, as it has been shown to contribute to the development of cataracts and may also lead to other eye diseases such macular degeneration.
Scientists are only now beginning to investigate the long-term health effects of blue light. Recent studies suggest that the blue end of the visible spectrum can also causes retinal damage akin to UV light and can possibly lead to the same eye conditions as prolonged UV exposure.
The eye damage from blue light occurs because the pigment absorbing cells of the retina are harmed by absorbing these high energy light rays when they enter our eyes.3 This precipitates a gradual oxidation and deterioration of the macula (highly sensitive part of the retina responsible for our central vision), leaving the eye more susceptible to degenerative conditions such as macular degeneration (MD). Blue light is also partially absorbed by the crystalline lens inside the eye (lens responsible for allowing us to focus) which contributes to the formation of cataract.3,4
Blue light has also been shown to stimulate a newly discovered subtype of retinal cell that controls aspects of our circadian rhythms.
Blue control is a new innovative anti-reflection coating that meets the demands of a very digital world. The coating works by effectively reflecting blue light emitted from digital devices, and even fluorescent lighting, thereby reducing its transmission into and absorption by the eye.7
As the widespread use of smartphones, tablet devices and computers increases the time we face a screen, more and more people suffer from eyestrain symptoms. One cause of this is believed to be the blue light emitted from the display on such devices. A new innovative anti-reflection coating known as Blue Control reduces the amount of blue light reaching our eyes by 35 percent.7
Considering our digital world, it could be suggested that spectacle lenses can now be used not just for vision correction but also maintenance of eye health!