What are blue light glasses used for?

You’ve probably ended the day with tired eyes, a slight headache, or found it hard to fall asleep after using your phone. There’s a hidden reason behind this that most people ignore, and it’s not just about screen brightness. If you want to know what’s happening to your eyes and how to avoid it easily, keep reading.

What is blue light and why does it affect us?

All the devices we use every day, such as computers, tablets, and mobile phones, emit a type of light called blue light. Although this light also exists naturally in sunlight, our screens expose us to it constantly and at a very short distance.

Our eyes are not designed to filter this light naturally for so many hours in a row. That’s why, when we spend a lot of time working or playing in front of a screen, our eyesight can suffer and the use of blue light glasses is recommended.

So, what are blue light glasses for?

The main function of these blue light filter glasses is to act as a protective shield. They feature special lenses that filter the excess blue light emitted by screens. When you wear them, you may notice several benefits right away:

They reduce eye strain: By blocking the most intense light, your eyes don’t have to work as hard to focus. This helps prevent that “sand in the eyes” feeling at the end of the day.
They improve rest: Blue light tricks our brain into thinking it is still daytime, which slows down the production of melatonin, the sleep hormone. Wearing these glasses helps your body understand that it is time to rest.
They help prevent headaches: Many headaches are caused by constant visual effort. By relaxing your eyes, these discomforts can be reduced.

An accessory for everyday life

The best thing about blue light glasses is that you don’t need prescription lenses to wear them. They are a visual health accessory. At DFranklin, we design models that not only protect you but also feature a modern style you can match with any outfit.

If you spend more than three hours a day in front of a screen, these glasses are for you. It’s not just about fashion; it’s about taking care of what you use the most: your eyes.

Frequently Asked Questions

Can I wear blue light glasses if I don’t need prescription lenses?

Yes, absolutely. Most people wear them without prescription lenses simply to protect their eyes from digital fatigue.

Is it bad to wear them all day?

No, it’s not bad, but they are specifically designed for when you use screens. If you’re walking outside or spending time in nature, they are not necessary, although they won’t harm you either.

Do they really help you sleep better?

Yes. By blocking the light that affects your sleep cycle, they help your brain relax naturally when night comes.

Can you change the crystals on your sunglasses?

Your favorite sunglasses may be in perfect condition, except for one detail: the lenses are scratched or damaged. If you don’t want to get rid of them, replacing the lenses can be a good option. When should you replace the lenses in your sunglasses? Imagine your favorite D.Franklin sunglasses are sold out or part of a special edition, the frame is in good condition, but the lenses are scratched. What should you do? It may be a good time to try replacing the lenses in your sunglasses. Scratched lenses are one of the most common reasons why you may need to buy a new pair of sunglasses or replace the lenses. Even if they seem small, scratches on the lenses can affect your vision and become annoying with daily use. It is also recommended to replace the lenses when they have lost color or clarity, as some lens treatments wear down over time and no longer offer the same level of protection. If you notice blurred vision, reflections bothering you more than usual, or you simply want to improve your protection from the sun, it may be time to replace the lenses or buy a new pair of sunglasses. Types of sunglasses and how they affect lens replacement Not all sunglasses are taken apart in the same way. There are three main types: Sunglasses with screws These are the easiest. You only need a small screwdriver. Pressure-fit sunglasses The lenses are fitted into the frame. You need to apply a little pressure carefully. Sunglasses with nylon wire These are more delicate. It’s better not to try this without experience. Identifying the type of sunglasses you have is key before getting started. How to replace sunglasses lenses step by step Although this process is best suited to those who are a little more daring and handy, if you want to do it yourself, the most important thing is to work calmly and prepare the process properly. By following a few basic steps, you can replace the lenses without damaging the frame. 1. Prepare the space Work on a clean, soft surface to avoid damage. 2. Remove the old lenses If they have screws, loosen them If they are pressure-fit, push carefully Do it slowly to avoid breaking the frame. 3. Clean the frame Before inserting the new lenses, remove any dust or dirt. 4. Insert the new lenses Fit them in gradually until they are firmly in place. 5. Adjust and check Make sure they are properly positioned and do not move. A good fit prevents problems when wearing them. What to consider before buying new lenses Before replacing sunglasses lenses, there are several important aspects you should check to make sure the new ones fit correctly. The size and shape must match the original lenses exactly. It is also worth considering the type of lens, whether polarized, gradient, or mirrored, depending on how you use your sunglasses. Another key point is UV protection. Choosing quality lenses with good sun protection will help protect your eyes and maintain comfortable vision outdoors. Not all lenses fit every frame, so it is important to always check compatibility before buying them. Is it better to do it at home or go to a professional? The answer mainly depends on the type of sunglasses and your experience. In simple models, especially those with screws, replacing the lenses at home can be quite easy. However, when it comes to delicate frames, branded sunglasses, or more complex systems, going to a specialist can help prevent damage and ensure a better result. If you have any doubts, the best option is not to risk damaging the frame, especially if your sunglasses are valuable or difficult to replace. Frequently asked questions about replacing sunglasses lenses Can all lenses be replaced? Not always. Some sunglasses are designed in a way that does not allow the lenses to be removed without damaging the frame. Even so, most current models do allow lens replacement. How much does it cost to replace the lenses? The price depends on the type of lens and the quality you choose. If you want to avoid complications, take advantage of the special discounts available on our website and get yourself a new pair of sunglasses. Do they lose protection when the lenses are replaced? No, as long as you use quality lenses with proper UV protection. In fact, in many cases, you can even improve the protection compared to the original lenses.

How to clean sunglasses without damaging them

You’ve probably cleaned your sunglasses with your T-shirt at some point… and then noticed those tiny scratches that weren’t there before. That small gesture could be damaging your lenses without you even realizing it. But don’t worry, because in this article you’ll discover how to clean your sunglasses properly and keep them looking like new for longer. Why it’s important to clean your sunglasses properly Sunglasses are not just a fashion accessory; they also protect your eyes from sunlight and help maintain comfortable, safe vision. When the lenses are dirty, not only do you see less clearly, but bacteria can also build up and the risk of scratching them increases. That’s why proper cleaning improves your vision and also extends the lifespan of your sunglasses. How to clean sunglasses step by step Follow these simple steps: 1. Wash your hands first Before touching your sunglasses, make sure your hands are clean. This helps prevent grease or dirt from transferring onto the lenses. 2. Use lukewarm water Place your sunglasses under a gentle stream of water. This removes dust without scratching them. 3. Apply neutral soap Use a small drop of mild, fragrance-free soap. Rub carefully with your fingers. 4. Rinse well Make sure to remove all the soap. Any residue left behind can leave marks. 5. Dry with a cloth Never use paper or clothing. Use a microfiber cloth to avoid scratches. Common mistakes when cleaning sunglasses There are some very common mistakes you should avoid. Cleaning your sunglasses while dry, using products with alcohol or ammonia, drying them with paper, or using any item of clothing are habits that can damage the lenses over time. Even if you don’t notice it at first, the damage gradually builds up. How often should you clean your sunglasses? When it comes to cleaning your sunglasses, ideally you should do it daily if you wear them often, or whenever you notice stains, dust, or fingerprints. Frequent cleaning prevents dirt from becoming embedded and makes it easier to keep the lenses in perfect condition. Extra tips to keep your sunglasses looking like new Small daily care habits can also make a big difference. Always store your sunglasses in their case when you’re not wearing them, avoid placing them lens-down, and don’t leave them exposed to the sun inside the car, as heat can deform the frame or affect the lens treatments. Whenever possible, use the original cloth that comes with them. Frequently asked questions about how to clean sunglasses Can I use wet wipes? Only if they are specifically designed for glasses. Regular wet wipes can damage them. Can alcohol be used to clean lenses? No. It can damage the lens treatment. What should I do if they are very dirty? Leave them in lukewarm water for a few seconds before cleaning them with soap.

How to Choose the Right Sunglasses for Every Sport

You may already practise your favourite sport and have good technique… but there may be something holding you back without you even noticing. The sunglasses you wear could be affecting your performance. Yes, it’s that simple. Choosing the wrong pair can make you see worse, feel uncomfortable, or even fail to protect your eyes properly. But don’t worry, because here you’ll learn which sunglasses to choose depending on the sport, easily and without complications. Why it’s important to choose the right sports sunglasses Not all sunglasses are suitable for every sports activity. What works for running may not be useful for cycling, water sports, or mountain activities. Each sport requires specific features. In some cases, you need greater protection from the wind, while in others the most important thing is reducing reflections, preventing the lenses from fogging up, or making sure the sunglasses stay firmly in place during movement. Choosing the right sports sunglasses improves comfort, stability, and visual safety. In addition, good sun protection helps reduce eye fatigue and protects your eyes from ultraviolet rays during training and competitions. Which sunglasses to choose depending on the sport When choosing sports sunglasses, it’s important to consider the environment, the intensity of the light, and the type of movement you perform. Here are some recommendations depending on each sport. Running and cycling sunglasses You need lightweight sunglasses that stay in place. Key features: Wraparound lenses, which protect from the wind Good ventilation High UV filter This helps prevent watery eyes, dust, and glare. Mountain sports sunglasses: hiking and trail running Here, sunlight is stronger and more changeable. Look for: Polarized lenses UV400 protection Resistant frame Visibility in the mountains is key to avoiding accidents. Water sports sunglasses The reflection from the water is very intense. The ideal choice: Polarized lenses Secure fit Water-resistant material They reduce reflections and improve what you see both in and out of the water. Racket sports sunglasses: padel Here, you need stability and safety. Recommended: Well-fitting sunglasses Impact-resistant lenses Comfortable design They help prevent the sunglasses from falling off or breaking during the game. Snow sports sunglasses: skiing and snowboarding The light is very strong because of the reflection. Choose: Lenses with a high filter Side protection Anti-fog protection This will help you avoid glare and blurred vision. Types of lenses and which one to choose In addition to the frame, the lenses play a key role when deciding which sunglasses to choose depending on the sport. Polarized lenses are ideal for reducing reflections and improving vision on surfaces such as water, roads, or snow. Photochromic lenses, on the other hand, automatically adapt to the amount of light and are very useful in sports where lighting conditions change. There are also mirrored lenses, which help reduce sunlight intensity and provide extra protection in very bright environments. Choosing the right type of lens is just as important as choosing a comfortable and resistant frame. Common mistakes when choosing sports sunglasses One of the most common mistakes is using fashion sunglasses for sports. Although they may look good aesthetically, they often do not offer the necessary protection or stability. Another frequent mistake is not checking the UV protection level. Dark sunglasses without the right filter can actually be even more harmful to your eyes. It’s also important not to choose sunglasses based only on design. Fit, comfort, and functionality should always be the priority when practising any sports activity. Frequently asked questions about which sunglasses to choose depending on the sport Can I use the same sunglasses for every sport? It is not the most recommended option. Each sport has specific needs, and using sunglasses adapted to each activity improves comfort and visual protection. Are sports sunglasses mandatory? They are not mandatory, but they are highly recommended. They help protect your eyes from the sun, wind, dust, and possible impacts. What does UV400 mean? It means that the sunglasses block 100% of ultraviolet rays, offering complete protection against solar radiation.