Why are you looking so blue?

In this day and age we are constantly shifting our eyes from one device to another, increasing our exposure to blue light. What exactly is blue light? Blue light, also called high-energy visible (HEV) light, is commonly considered to be the light between 400nm and 500nm on the spectrum. It is the most scattered of the visible light rays, and therefore, causes chromatic aberration. There is accumulating research that indicates exposure to high levels of blue light can be harmful to eyes. 

Aside from it potentially being harmful to the eyes, it can also affect the body’s natural sleep cycle, as it is what suppresses the secretion of melatonin (our “sleep” hormone). Overexposure to blue light can therefore cause the body to want to stay awake when it should be sleeping.


It’s a good thing there are now lenses that can help protect our eyes from harmful blue light!

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