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What is Blue Light?

February 18, 2019

The Problem: Digital Eye Strain

If you’re like us, you spend several hours a day in front of a computer screen or digital device. The problem is that our eyes are not designed to be exposed to blue light emitted by computer screens, phones, and television constantly. This strong blue light causes eye fatigue, dry eyes, blurred vision, headaches - symptoms of digital eye strain also known as Computer Vision Syndrome. Beyond damaging the eyes, exposure to blue light at night disrupts the circadian rhythm that regulates the release of melatonin, preventing us from falling asleep easily and degrading sleep quality.


What is Blue Light?

Blue light also known as high-energy visible blue light (HEV) has high frequency and short wavelengths similar to UV light. Prolong exposures to blue light has shown to damage the retina, the part of the eye that detects qualities such as color and light intensity. Because your eyes are working extra hard to cope with the blue light, you begin to experience eye strain. Over sustained periods, the exposure can contribute to long-term vision issues such as cataracts and age-related macular degeneration (AMD).

Sleep Disruption

At night, blue light disrupts our circadian rhythm, the natural release of hormones (melatonin). The blue light tricks our brain into believing that it is day-time, which makes falling asleep more difficult and lowers our sleep quality. Circadian disruption produces serious downstream effects including increase in obesity and depression.

We can help

Our blue light upgrade on all regular glasses costs only $19 to any pair of glasses, and are designed to block harsh blue light, reduce your eye strain, and give you back a good night sleep. You don't need a prescription to get this add on feature. Just choose with lenses option when buying any pair, then let us know if you have a prescription or not. When choosing lens type, choose BLUE LIGHT [+$19].






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