Who, when & where

Protect your eyes, and make it a habit!

UV+420cut™ technology can be used in making corrective eyewear, non-corrective "fashion eyewear", and sunglasses. Lenses with UV+420cut™ technology can be used by people of all ages, in almost any situation.

UV+420cut™ technology:
for all ages and most any situation.

Photo: UV+420cut™ and kids


In young people, the crystalline lenses are especially transparent, which means their retinas are more susceptible to damage*1. Make a lifelong habit of protecting your eyes with corrective eyewear or non-corrective fashioneyewear made with UV+420cut™ technology.

Photo: UV+420cut™ and adults


With more adults spending time on outdoor activities, the high-energy portion of sunlight can pose serious risks. Make a habit of caring for the health of your eyes and look good at the same time using eyewear made with UV+420cut™ technology.

Photo: UV+420cut™ and seniors


Most seniors know someone who has experienced eye problems such as cataracts or age-related macular degeneration. To help keep vision clear into old age, choose eyewear made with UV+420cut™ technology, which cuts out a broader spectrum of wavelengths of high energy light.

Filtering performance test with clear lenses and sunglasses

UV and visible light were shined at a model of the eye. A variety of lenses were inserted between the light source and eye, and measurements were taken to see whether 400–420 nm light reached the retina at the back of the eye.

Photo: UV+420cut™ demo kit

Clear lens comparison (video)

Most regular clear lenses:

These lenses cut UV light while transmitting all the visible light, so even the high-energy visible light (400–420 nm) can reach the retina.

Clear lenses with UV+420cut™ technology:

These lenses filter out UV and high-energy visible light (400–420 nm), while the image being viewed stays nice and clear.

Sunglass comparison (video)

Most regular sunglass lenses:

The darkness of the lens is not always indicative of how well it blocks. Most sunglasses block UV light, but allow HEV light (400–420 nm) to pass through and ultimately reach the retina.

Clear lenses with UV+420cut™ technology:

These lenses block both UV and HEV light in the 400–420 nm part of the spectrum.


  • *1 Graefes Arch Clin Exp Ophthalmol. 1996 Jan;234(1):2-11. Light damage revisited: converging evidence, diverging views? Remé C, Reinboth J, Clausen M, Hafezi F.