Blue Light Blocking Glasses

These glasses block blue light and optimize circadian rhythm. They can block up to 100% of harmful blue light. They block a spectrum with a wavelength of 380 to 500 nm. By wearing blue-light-blocking glasses before going to bed, you can improve sleep, health and morning energy.

Blue light and its effect on sleep quality

Blue light, like other colour lights, is all around us. This light may not always appear blue because it can be mixed with other colours. Light is created by combining different wavelengths across the visible spectrum, and the specific composition of these wavelengths creates signals in our eyes, which we then perceive as a particular colour. Just like light bulbs, also the sun emits a blue component of light. However, this blue light does not have the same effect on our body as the one from pc, phone or tv screens.  Our eyes are equipped with layers that protect us from certain types of light. For example, the cornea and lens protect the sensitive retina at the back of the eye from UV damage. These layers do not transmit blue light. However, exposure to blue light from digital screens is an unnatural source of light. Plus, some people spend most of the day in front of a screen. 

The recommended amount of sleep to really feel energized every day is about 7 hours. Unfortunately, it is estimated that at least two-thirds of the world's population fails to comply with this recommendation. Then overall productivity decreases during the day and tension, fatigue and stress occur. If we normally sleep less than 6 hours a day or do not follow the principles of healthy sleep, in which its phases alternate regularly and the release of hormones is not disturbed, we damage our health in the long run.

What is a circadian rhythm and why are blue light blocking glasses so important today?

Today, compared to the time of our grandmothers, we encounter an enormous influx of blue light around us. Whether it is smartphones, PCs, tablets or televisions. So even during the night, light from public lighting or from surrounding buildings affects us. The light that penetrates your eyes through the retina suppresses the production of melatonin, a sleep-inducing hormone. Melatonin is flushed out in the brain when the eyes are not exposed to any light. Suppressing melatonin production impairs the ability to fall asleep and thus affects the overall quality of sleep.

The circadian rhythm is our biological clock. Thanks to this very sophisticated mechanism, the body knows exactly when to be active and when to involve all organ systems, including the brain, which works much better when we are well-rested. When the evening and night come, it activates its regeneration and renewal processes. The body and mind rest so that everything is ready for the new day. If it is the other way around, we suffer from great fatigue, poor concentration, memory problems, distraction and a bad mood during the day. As a result, we can't sleep in the evening and wake up more often during the night.

Glasses designed to block blue light should be worn for at least two hours before going to bed so the production of melatonin is not suppressed. The glasses help us convince our brains that even though we are watching TV, it is already dark and it is time for bed.

How to choose glasses to block blue light?

It is good to choose glasses according to the time of day you want to use them. Glasses with a blockage of 80% and above are intended for evening use only, as they help block the ubiquitous blue light that prevents melatonin production in the brain. By blocking the blue light, the production of melatonin begins, thus achieving better, faster sleep and also better and deeper sleep. Glasses with 15-30% blockage are designed primarily to protect eyesight from the effects of blue light, to which we are often exposed during work hours. 

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