Blue light: What does it mean and when do blue light glasses make sense?

Blue light: What does it mean and when do blue light glasses make sense?

Jesper Krog Jensen - CEO at Prego
Author Jesper Krog Jensen

CEO & Owner of PREGO with +25 years of experience in the eyewear industry.

Man with blue light glasses from prego

Blue light is about screen comfort in a digital everyday life

Blue light glasses are relevant for those of you who spend a lot of time in front of a computer, mobile, tablet or gaming screen and want a more comfortable screen experience.

However, the most important thing is still that the glasses suit your eyesight and your everyday life. Blue light technology should be seen as a supplement to good lighting, breaks, correct screen distance and a good working position.

Blue light and blue light glasses in everyday life

Blue light is a term that many come across when looking for glasses for screen use, computer work, gaming or everyday use with mobile phones and tablets. But what does blue light actually mean and when does it make sense to choose glasses with blue light technology?

In an everyday life where many people spend several hours in front of digital screens, it is natural to think about eye comfort. Many people experience tired eyes, dryness, difficulty concentrating or discomfort after long periods in front of a computer, mobile phone or tablet. Here, blue light glasses may be relevant for some, but it is important to understand that they do not stand alone.

At PREGO you will find glasses with blue light technology both with and without power, so you can choose a solution that suits your vision, your screen use and your personal style. PREGO is an E-branded webshop and a member of the Opticians' Association, so you can buy glasses online with a focus on safety, professionalism and quality.

Blue light glasses should be chosen carefully. They can be a good supplement in a digital everyday life, but the best solution is always about the whole: correct strength, good fit, breaks, light and a comfortable working position.
- Jesper Krog Jensen

What is blue light?

Blue light means blue light. It is part of the visible light that is found naturally in daylight, but which is also emitted from digital screens such as computers, mobile phones, tablets and TVs.

When you talk about blue light in connection with glasses, it is typically about glasses that are made with a focus on screen use. Many choose blue light glasses because they spend many hours in front of screens and want a more comfortable experience in everyday life.

However, it is important to be precise: Blue light glasses should not be marketed as a guarantee against eye damage or as a safe solution for all types of tired eyes. Discomfort with screen use can also be caused by many other things, for example dry eyes, too few breaks, incorrect strength, poor lighting or inappropriate working posture.


What are blue light glasses?

Blue light glasses are glasses with lenses that are made with a focus on the blue light from digital screens. They are available both with and without strength.

Blue light glasses without strength are for you who do not need vision correction, but would like a pair of glasses for computer, mobile, tablet or gaming.

Blue light glasses with strength are for you who need help to see clearly while also wanting glasses with blue light technology. These can be, for example, reading glasses with blue light or screen glasses with strength.

At PREGO you will find blue light glasses in different shapes, colors and expressions, so you can choose a model that suits both your needs and your style.


When do blue light glasses make sense?

Blue light glasses can make sense if you spend a lot of time in front of a screen and want a pair of glasses designed with a focus on screen use.

It may be relevant if you work at a computer, study digitally, game, use a mobile phone many hours a day or often switch between different screens during the day.

For some, blue light glasses are also about habit and comfort. It can be nice to have a fixed pair of glasses that you put on when the working day in front of the screen starts. In this way, the glasses become part of a screen routine together with breaks, good lighting and the correct screen distance.


Blue light and screen usage

Many people associate blue light with computer work and digital screens. This is because today we spend many hours in front of screens in both work and leisure.

When the eyes focus on a screen for a long time, they can get tired. This is not necessarily due only to the light from the screen. It can also be because we blink less, sit too close to the screen, have the wrong light in the room or use a strength that does not match the distance.

Therefore, blue light glasses should not be left alone. They should be combined with good screen habits, especially if you work many hours in front of a computer every day.


Blue light glasses with strength

Blue light glasses with strength are relevant for those who need vision correction and at the same time want glasses for screen use.

It could be reading glasses with blue light, for example, if you read a lot on a mobile phone or tablet. It can also be screen glasses with strength if you work many hours at the computer.

The most important thing is that the strength matches the distance you use the glasses at. A strength that works well for close reading is not always optimal for a computer screen, because the screen is often further away than a book or mobile phone.

If you are in doubt about your strength, you should have your vision examined by an optician.


Blue light glasses without power

Blue light glasses without strength are for you who do not need vision correction, but still want glasses for screen use.

They do not change your vision because the lenses do not have plus power, minus power or cylinder. They can be used for computer work, gaming, studying, mobile use or general screen use.

Many also choose non-prescription blue light glasses as part of their style. They look like regular glasses and are available in different frames, colors and shapes, so you can choose a model that suits your face and expression.


Blue light for computer work

If you work long hours in front of a computer, blue light glasses may be relevant as part of your work routine. They can be used when you sit at the screen for a long time and want a more comfortable experience.

But computer comfort is about more than glass. The height of the screen, the distance to the screen, the brightness, the lighting of the room and your working position also play a big role.

A good starting point is to place the screen at a comfortable distance, avoid glare, take regular breaks and ensure that you are not sitting and straining your neck and shoulders.


Blue light for gaming

Gaming often means a long time in front of the screen, high concentration and many hours focusing on details. Therefore, many gamers choose blue light glasses as part of their setup.

If you do not use glasses on a daily basis, blue light glasses without strength can be an obvious choice. If you already use prescription glasses, you should choose a model that also suits your vision.

Comfort is extra important when gaming. The glasses must fit well, not pinch the temples and work together with the headset.


Blue light for mobile and tablet

Mobile phones and tablets are often used closer to the face than a computer screen. This means that the eyes work at a short distance, especially if you read messages, news, emails or use social media for a long time.

If you often tire your eyes when using a mobile phone, it may be worth considering both blue light glasses and your general habits. If necessary, turn down the brightness, keep the mobile a little further away, take breaks and avoid sitting with the screen very close to the face for a long time.

If the text on the mobile has started to become more difficult to read, it may also be a sign that you need reading glasses or a different strength.


Is blue light the same as screen glasses?

Blue light glasses and screen glasses are often used interchangeably, but they do not always mean exactly the same thing.

Blue light glasses are about glasses with a focus on blue light technology. Screen glasses refer more broadly to glasses that are used in front of a screen. Screen glasses can therefore be both with strength, without strength and with or without blue light technology.

If you are looking for glasses for computer work, you should not only look for the word blue light. You should also consider whether you need strength, what distance you work at and how long you use the screen.


Blue light and good screen habits

Blue light glasses can be a supplement, but good screen habits are at least as important.

Take breaks during the day so that the eyes have the opportunity to change focus. Ensure good lighting in the room, avoid glare on the screen and adjust the brightness of the screen to match the surroundings.

Also remember to blink. Many people blink less when they concentrate in front of a screen, and this can cause dry or irritated eyes.

If you experience persistent headaches, blurred vision or significant discomfort when using a screen, you should have your vision examined.


Blue light glasses from PREGO

At PREGO you will find blue light glasses for various needs. You can choose models with strength, without strength or reading glasses with blue light technology, depending on how you use your eyes in everyday life.

PREGO is an E-branded webshop. This means, among other things, that the webshop meets the E-mark's requirements for a transparent purchase flow, visible and reviewed trading conditions and clear information about payment, delivery and right of withdrawal. As a customer of an E-marked webshop, you also have access to free complaint assistance through the E-mark and buyer protection of up to DKK 10,000 per trade in the purchase of physical goods.

PREGO is also a member of the Opticians' Association, which supports our focus on professionalism, advice and many years of experience with glasses, fit, frames and the needs of our customers.


How to choose the right blue light glasses

When choosing blue light glasses, you should first think about whether you need strength.

If you see fine without glasses, blue light glasses without strength may be relevant. If you need help with reading or screen use, you should choose a model with the strength that suits your vision.

You can then choose frames based on fit, face shape and style. The glasses must sit comfortably, not slide down and not pinch the temples. They must also suit the way you use them in everyday life.

A good pair of blue light glasses is not just a matter of glass. It's also about comfort, fit and whether you actually get to use them.

FAQ about blue light

What does blue light mean?
Blue light means blue light. It is part of the visible light that is found naturally in daylight, but which is also emitted from digital screens such as computers, mobile phones, tablets and TVs.
What are blue light glasses?
Blue light glasses are glasses with lenses that are made with a focus on blue light technology and screen use. They are available both with and without strength.
Who should use blue light glasses?
Blue light glasses may be relevant for those of you who spend a lot of time in front of a computer, mobile, tablet or gaming screen and want a more comfortable screen experience.
Are blue light glasses available without strength?
Yes, blue light glasses are available without power. They are for you who do not need vision correction, but would like to have glasses for screen use.
Can blue light glasses be available with strength?
Yes, blue light glasses are also available with strength. It is relevant if you need help to see clearly at the same time as you want glasses with blue light technology.
Are blue light glasses the same as screen glasses?
Not always. Blue light glasses are about glasses with blue light technology, while screen glasses are a broader term for glasses used in front of a screen.
Can blue light glasses help against tired eyes?
Blue light glasses can provide a more comfortable screen experience for many users, but tired eyes can also be caused by dry eyes, too few breaks, incorrect strength, poor lighting or ergonomics.
Can blue light glasses help with headaches?
If the headache is related to screen use and eye strain, blue light glasses can be a relevant supplement. If you have frequent or persistent headaches, you should have your vision examined.
Can I wear blue light glasses all day?
Yes, if they fit comfortably, you can use them during the day. Many use them especially for computer work, studying, gaming or prolonged screen use.
Are blue light glasses relevant for gaming?
Yes, many gamers choose blue light glasses as part of their setup, especially when spending a lot of time in front of the screen. Comfort and fit are important, especially if you use headsets.
Are blue light glasses relevant for office work?
Yes, they can be relevant for you who work many hours at a computer. However, they should be combined with good screen habits, breaks and correct working posture.
Should I choose blue light glasses with or without power?
If you see fine without glasses, you can choose blue light glasses without strength. If you need vision correction, you should choose blue light glasses with the correct strength.
Can I use reading glasses with blue light?
Yes, reading glasses are available with blue light technology. It is relevant if you read a lot on a mobile phone, tablet or work with text on a screen.
What is the difference between blue light and UV?
Blue light is part of the visible light spectrum, while UV light lies outside the visible spectrum. Sunglasses are typically about UV protection, while blue light glasses are typically associated with screen use.
Can blue light glasses harm the eyes?
Blue light glasses without the wrong strength usually do not harm the eyes. If you experience discomfort, headaches or blurred vision, you should have the strength or fit checked for you.
How do I choose the right blue light glasses?
Start by assessing whether you need strength. Then choose a model that fits well, fits your face shape and feels comfortable after prolonged use.
Can I buy blue light glasses online?
Yes, you can buy blue light glasses online. It's especially easy if you know whether to choose with or without strength.
Is PREGO a safe webshop to buy blue light glasses from?
Yes, PREGO is an E-marked webshop and a member of the Opticians' Association. This provides a safe starting point when you buy blue light glasses online.
What does it mean that PREGO is E-marked?
This means that PREGO meets the E-mark's requirements for safe and transparent e-commerce, including clear trading conditions, information on payment, delivery and right of withdrawal, as well as access to free complaint assistance.
What does it mean that PREGO is a member of the Association of Opticians?
This means that PREGO has a professional connection to the optician industry and works with glasses based on experience, advice and an understanding of the customers' needs.
Why choose blue light glasses from PREGO?
PREGO offers blue light glasses with a focus on comfort, style and function. You can choose models with or without strength and shop safely at a Danish E-marked webshop that is also a member of the Opticians' Association.