From NASA technology

In space, NASTEK™ ZAIO lens technology protects from dangerous radiation. On earth, NASTEK™ ZAIO lenses kill 100% of UV rays and 98.9% of harmful Blue Light.  NASTEK™ ZAIO lenses protect and enhance vision. See sharper and further. See better and safer.  The NASTEK™ optical advantage improves and enhances your sports vision and safety.

Sunscreen for your eyes.  Harmful radiation blocked by NASTEK™ ZAIO lenses.

Blue Light Control

Blue light is part of the visible light spectrum and is emitted by the sun.  Some portions of blue light can be beneficial and help regulate our bodies’ internal biological clocks.  However, blue light can have a harmful impact on the eyes.  Recent studies cited by the American Macular Degeneration Foundation suggest that “the blue end of the light spectrum may also contribute to retinal damage and possibly lead to age-related macular degeneration.”

Since some forms of blue light are necessary, NASTEK™ ZAIO lens coatings selectively block only the harmful portions of blue light, while allowing beneficial blue light to pass through, making the good rays enhance your vision by letting you see through the reflected colors that occur when light moves through air.

NASTEK™ ZAIO lenses block 98.9% of harmful blue light while safely enhancing your vision and visual clarity.

D•CURVE snow goggles and sunglasses improve your performance sport vision while safely protecting your eyes with NASTEK™ ZAIO lenses.

D•CURVE - See the Difference.