Are all Blueblocker glasses colored yellow?
The answer is clearly no. It would also be better to ask the question "Why are some Blueblocker glasses colored yellow?" and "Do all yellow glasses also block blue light?"
First of all, the color of the lenses does not say much about the filter quality. Ski goggles with a yellow tint are a good example. This is supposed to increase contrast and make it easier to see bumps on the slope in bad weather. Measurements will show that parts of the blue spectrum still get through.
However, it can generally be said that the darker the color of the lenses (light yellow-yellow-orange-red), i.e. the "redder" the glasses, the more blue light, or rather, the more wavelengths in the visible spectrum are blocked. This is why green light is also filtered with dark orange and red coloration.
What you can deduce from this, for example, is that transparent glasses can only block a small amount of blue light, light yellow glasses probably filter out more than transparent ones and orange ones filter out a little more, and so on.
So when should you use which tint? Here are a few possible applications:
Clear lenses
There is a wide range of clear lenses that are marketed as blue blockers.
As already mentioned, these glasses can only filter out a small proportion. So if you see advertising claims that speak of a higher filter performance than 5-30% for such glasses, you should be skeptical. These glasses are usually found under the heading "computer glasses". They are supposed to protect against dry and strained eyes.
Glass |
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100% blue light filter performance |
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Sleep (protection against melatonin suppression) |
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Stress reduction for the eye (protection of sensitive photoreceptors) |
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Personally, I don't think much of wearing glasses during the day, especially if I don't need glasses anyway. It is important to get the full light spectrum throughout the day, in the eyes and ideally also on the skin.
When working on the computer during the day, it makes sense to consider a filter such as f.lux or Iris to achieve a similar effect.
However, if your work environment is cluttered with bright LEDs and screens and you have difficulty getting natural light to your workstation, then glasses like these may be the right solution.
Yellow glasses
Yellow lenses can block much more blue light. As we mainly focus on the time when the sun has already set, these glasses can be used as driver's glasses in road traffic. While the darker variants, which we will come to later, are not approved for use in road traffic, this is possible with yellow lenses (always make sure that you are actually approved for this). LED and xenon headlights in particular are a potential problem on the way home, where you actually want to go straight to sleep.
So if you are on the road a lot and still want to be consistent, the yellow lenses are a good choice.
Orange lenses
These glasses are designed to help you sleep better. As long as the blueblocker glasses are of good quality, they can already filter out 100% of the blue light spectrum.
This makes sense, as in a historical context, once the sun had set, we no longer had any light available. Unless we made a fire. We are very used to that.
If you look at what kind of light spectrum fire provides, you can see that blue light is hardly represented, if at all. This is a simple explanation to understand why we want to filter this part of the light to better prepare the body for sleep.
Since we "turn night into day" with modern lighting and screens, our internal clock does not have the opportunity to set itself correctly and thus to properly regulate the release of hormones, especially the sleep hormone melatonin, which is also known as the "dark hormone".
Orange glasses therefore help us to better establish the natural context in an artificial environment after sunset, so that our body gets into a better rhythm and we sleep more deeply.
Dark orange/red glasses
These glasses block another part of the light spectrum, reaching into the green spectrum. These glasses are reported to make you tired even faster. Otherwise, just like the orange lenses, they serve to prevent our night from turning into day, but the color rendition is no longer as good.
Conclusion - Are all Blueblocker glasses tinted yellow?
No, as we now know very well after reading this article.
The tint and quality of the lenses play a role in the right choice of glasses. Blueblocker glasses. The desired area of use and personal preferences also play a role.
When it comes to quality, it is important that the filter really does filter what the manufacturer promises.
You should avoid filtering certain wavelengths during the day, unless you are in a completely artificial environment and there is nothing you can do to change that. If this is not the case, I would use a software-based filter such as Iris or f.lux for daytime screen work and provide plenty of natural light. However, if you are very sensitive to light and feel that your eyes are overloaded, give it a try.
As a little tip - always try to look through the window into the distance and give your eyes a little break from the display.
If you travel a lot by bike or car in the evening, the yellow glasses are definitely recommended, provided they are approved for road use.
Otherwise, to protect you from blue light in the evening and prepare your body for the sleep to come, orange or orange-red glasses are the right choice. Especially if you are still sitting in front of the TV, tablet, cell phone, notebook or computer.
Whether orange or red-orange is the right choice for you depends more on personal preference. We recommend combining the two variants, depending on what you have planned for the evening, you can then choose one of the two.
As a little tip - create a "campfire setting" in the evening by also working a lot with candlelight and relaxed, not too bright light sources.