The ZEISS Blue-Violet Light Blocking Solutions.
DuraVision® BlueProtect by ZEISS is a coating specially developed for people who spend a lot of their time indoors and are exposed to blue-violet light from LEDs as well as TV, computer or tablet screens.
Modern light sources and displays emit a disproportionately high amount of blue light. While the human body requires a certain amount of blue light to control the sleep/wake cycle, too much of the ‘wrong’ kind of blue light can pose a health risk and cause eye diseases.
Lenses with a ZEISS DuraVision BlueProtect lens coating feature a special filter which ensures comfortable vision even when there is a high blue light portion.
Protect Against the Risk of Macular Degeneration
There is a body of evidence to suggest that long-term exposure to blue-violet light below 460 nm, with a maximum at 440 nm, may contribute to photochemical damage of the retina, increasing the risk of macular degeneration over time (known as the ‘blue light hazard’)
To offer patients true protection, ZEISS has developed an additional anti-reflective layer on the back of the lens, reducing the indirect light reflected into the eye and complementing the protection offered by ZEISS UVProtect Technology in all clear plastic lenses which blocks direct UV rays from the front.
More than 90% of UV radiation comes directly from the front. However, a minor part comes in indirectly from the sides and back. As some UV rays may be reflected onto the eye by the back surface of the lens, ZEISS antireflective coatings are designed to have low reflectance in the UV spectral range.
Back surface UV protection is now integrated as a standard feature into all premium ZEISS DuraVision coatings and the LotuTec coating.