Blue light is hazardous to the eyes
The shorter the wavelength of light, the more energy it stores. Blue light waves fall within the short wave range of the visible spectrum and belongs to the most energy-rich ones. This explains why blue light (between approx. 380 and 450 nm) is more hazardous than other light. In addition to that the fact that blue (artificial) light emitted by screens has a richer spectrum of harmful blue light than sunlight, which contains more yellow and red.
A further factor raising concern among specialists is linked to a change in our lifestyle, which leads to us being exposed to excessive amounts of blue light. In addition to the natural blue light emitted by the sun, we are confronted with artificial blue light from screens and LED light sources on a daily basis. This phenomenon is further aggravated by the length of time for which we are exposed to this light. At work, 43% of adults use a computer or tablet, as well as a smartphone, for prolonged periods of time.
The energy emitted from blue light causes it to flicker more than other light. It also produces more glare, resulting in eye fatigue and headaches in the long term. Almost 70% of all adults who regularly use electronic devices with illuminated displays report certain symptoms of visual fatigue, such as impaired vision, dry and irritated eyes or headaches.
Age-related macular degeneration (AMD)
Contact with harmful blue light (between 380 and 450 nm) can lead to age-related macular degeneration. This means that, over time, retinal cells can become irreversibly damaged. In industrial countries, this is the most frequent cause of eye diseases resulting in blindness.
Eyewear with blue light reduction benefits
Wearing safety spectacles that reduce harmful blue light is recommended at workplaces with screens as well as for people who work in environments with glaring artificial light sources (LED lighting), as can sometimes be the case in light industry or certain logistics platforms.
Safety spectacles with the uvex CBR65 tint absorb around 50% of blue light, with a maximum absorption of 450nm, ensuring effective protection against harmful blue light without impairing the sleep cycle. They are ideal for use at workplaces with screens.