Our eyes and bodies were not designed to sit in front of a computer all day long.

That’s a fact that’s been written about for over 20 years now (by lots of incredibly smart men and women). Another fact? Computers, smart phones, and tablets are part of our everyday life. There’s no way around it, and we think it’s safe to say they’re not going anywhere. Combine these two facts and a problem emerges: Digital Eyestrain.

The lenses we use at Phonetic Eyewear were designed to combat the effects of Digital Eye Strain and alleviate the symptoms associated with Computer Vision Syndrome. Using a proprietary lens coating, we are able to reflect and absorb a portion of the potentially harmful blue light emitted from computers and other backlit devices.

Made of a high quality 1.56-index optical lens, all of our glasses come standard with the blue light reflecting coating and a hard coat to deter scratching and fingerprint smudges.

The transmission characteristics for Phonetic lenses are summarized in the graph above. Phonetic lenses block approximately 35% of the light in the violet/blue spectrum (380nm to 500nm) and more than 50% of the light from 380nm to 450nm, which is the portion of the violet/blue spectrum with the highest energy content.

Grace Jack Allen

Interested in looking at some more numbers about the blue light blocked by Phonetic Eyewear? Click here for more information.