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Blue Light Both Beneficial and Harmful

Justin Hoatson
Wednesday, April 9th, 2014 by Justin Hoatson

Blue Light is the shortest wavelength of visible light, and it can be both beneficial and harmful to the human body. It is helpful in many physiological responses: it constricts the pupils, syncs our circadian rhythms, helps in the production of melatonin, improves cognitive performance, as well as helping to regulate mood and body temperature. However, there is a damaging side to blue light, as this higher energy wavelength of light contributes to degenerative diseases of the eye such as age-related macular degenerative, a slow process which damages the eye over time. We receive this exposure to blue light not only through sunlight but also through computer screens, tablets, smartphones, and light sources such as LED’s and compact fluorescent lamps.

The problem is how to block the damaging spectrum of blue light, while allowing the beneficial wavelengths to come through the lens. The answer is photo filtration found in our exclusive Hoya Recharge lenses. These lenses reduce the level of exposure to the harmful spectrum of blue light while permitting the rest of the visible spectrum to enter the eye at normal levels.

In addition to filtering out some of the higher energy blue light which can be damaging to the eye, Hoya Recharge lenses also reduce glare while driving at night. Plus they have the highest scratch resistance available on the market. Clearer, more durable lenses, combined with photo filtration, means clearer vision for you. Stop by to learn more about the Hoya Recharge lenses and how they can begin to improve and protect your vision today!

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