Blue Shield Coating
Designed to filter blue-light rays
Blue Shield coating has been designed specifically to filter the blue-light rays emitted from many frequently used electrical devices such as smart phones, tablets and PC monitors. A Blue Shield lens blocks 99.75% of UV at 410nm.
In addition, a Blue Shield lens absorbs 20% of blue light transmission (380-500nm) for 1.67* index and 18% (380-500nm) for 1.61* index. Blue Shield lenses offer minimised reflection and glare with an enhanced scratch resistance to increase their lifespan. They are also very easy to clean due to the anti-static qualities.
KEY BENEFITS OF BLUE SHIELD:
- Reduced eye strain and fatigue
- Improved comfort
- Optimum contrast and sharper vision in artificial lighting
BLUE SHIELD IS AVAILABLE IN:
1.6 and 1.67 in stock lenses and in 1.5, 1.6, 1.67 and 1.74 in freeform single vision and WIDEVIEW freeform progressives.
* Lenses tested were stock 1.61 and 1.67 in a power of +2.50