What is a Bluefilter?

You can compare blue light to ultraviolet light (UV) light. UV light and blue light are part of the natural daylight. Daylight is good for you. It is not without reason that we are encouraged to go outside. Daylight charges you, as it were. Your body gets to work and produces serotonin. This substance is also known as the happiness hormone. Your body also produces cortisol, also known as a stress hormone. Both substances make you feel awake and active.

Which devices emit blue light?

More and more sources of blue light have come into our lives through the use of LED screens, which are rich in blue light. Think of devices such as smartphones, tablets, computer monitors, laptops and televisions.

The screen where you are reading this text emits blue light. This light is therefore also found in daylight and in the light of LED lamps. Blue light is not harmful, but it can make watching on a monitor for long periods of time less comfortable. We explain how that happens. And what you can do for more comfort.

The disadvantages of working on a monitor

If you look at screens frequently, this can feel uncomfortable in the long run. You stare at the screen for long periods of time, focus on (fine) print or other details, and blink too little. Blue light increases the risk of depression and can also cause physical symptoms such as dry, tired or burning eyes; pain in the neck, shoulders or back; headache and concentration problems. The risk of obesity, diabetes and heart problems is also increasing.

What can be done about it?

Research by the RIVM (in cooperation with the Amsterdam Medical Center) among more than 1,300 children and adolescents shows that filtering blue light with glasses with Blue filter has a positive effect on the natural production of melatonin and on sleep quality. Bluefilter glasses provide a little more orange glow over your screen, making the colors softer and warmer. The Bluefilter is a coating on your lenses that normalizes the blue light from your screen. It doesn't matter if you are farsighted, short-sighted or have no eye defect at all. This is because you can opt for Bluefilter prescription or non-prescription glasses. The glass with Bluefilter neutralises blue light and soothes your eyes. This way, you protect your eyes from the adverse effects of your screen, making it easier to work relaxed in front of your computer or other monitor. And that's great!

It's important to take good care of your eyes. Below are a few tips.

• Take breaks from your screen.
  Looking at a computer or smartphone all day ensures dry eyes. When you look at a digital screen, you blink less. That's why it's important to take regular breaks when you're not looking at a screen.
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• Keep your distance from your screen.
  Depending on the size of your screen, an average distance of 60 - 100 cm is recommended.
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• Use the 20-20-2 rule.
  To prevent eye problems, ophthalmologists recommend the 20-20-2 rule of thumb. The 20-20-2 rule means: after 20 minutes of watching a phone or tablet, take a break of 20 seconds and look into the distance. The 2 means going outside for 2 hours a day.

Do you still have questions?

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