WHAT IS BLUE LIGHT?
Blue light is not a new thing, it has been around since the beginning and it is everywhere. For example, we get more blue light from the sun than we do our electronic devices. Blue light has been given a bad name, but in fact researchers have determined that blue wavelengths are actually beneficial during daylight hours because they boost ones reaction time, attention and mood.
However, since the digital era, we have gone from being exposed only to natural light during the day and darkness at night, to constant artificial light at all times. Why is this bad you may say? As we spend more time in front of computer screens, tablets, and smartphones, we increase the amount of blue light we are exposed to, and that’s where blue light filtered lenses may help. Other than our eyes being blasted with artificial light all day causing eye strain, dry eyes and even headaches, it can cause problems with your sleep. Too much exposure to blue light at night can suppress the secretion of melatonin, a hormone that regulates sleep cycles. Whenever we use our digital devices, especially late into the night, we’re actually telling our brains to keep our bodies awake.
“THE BRAIN ASSOCIATES BLUE LIGHT AS DAYTIME, SO IF EXPOSED TO BLUE LIGHT FOR LONG PERIODS OF TIME DURING THE NIGHT, BLUE LIGHT MAKES IT MORE DIFFICULT FOR US TO FALL ASLEEP AT NIGHT AND WAKE UP IN THE MORNING."
WHAT DO BLUE LIGHT FILTER LENSES DO?
Blue light filter lenses block the transmission of a specific wavelength. This helps ease eye strain and the sleeplessness you may experience from excessive amounts of screen time.
“BLUE LIGHT IS THE PORTION OF THE VISIBLE LIGHT SPECTRUM WITH THE SHORTEST WAVELENGTHS (400 TO 500 NANOMETERS OR NM) AND WITH THE HIGHEST ENERGY, HENCE IT IS OFTEN REFERRED TO AS HIGH-ENERGY VISIBLE (HEV) LIGHT,”
ARE BLUE LIGHT FILTER LENSES FOR EVERYONE?
Blue light filter lenses in general are for everyone. Having said that, blue light filter lenses do slightly alter the colouration of your vision, giving a slight yellowing effect. We would recommend that if you need your eyes for art, graphic design and need colours to look as natural as possible, then blue light filter lenses may not be the right choice for you.