Blue light glasses

PROTECT YOUR EYES AND USE BLUE LIGHT GLASSES

Do you also read the latest news on your phone before falling asleep? Do you also stare at a computer screen for at least 8 hours at work? If you answered YES to at least one question, we advise you to buy glasses to protect against blue light.

Blue Light glasses, our whole range of glasses

And what is the blue light that is so dangerous to our eyes?

Blue light is the spectrum of visible light with the highest energy and shortest wavelength, similar to UV rays. Blue light has both good and bad effects. We share with you some essential facts about blue light.

Blue light is everywhere

The primary source of blue light is sunlight, and most of us are exposed to blue light when we are outside. But there are many artificial sources of blue light, such as LED lights, halogen lights, and flat-screen TVs. Cellphones, computers and tablet screens also emit significant blue light.

The amount of blue light, also known as high-energy visible light or HEV light, emitted by these devices is a fraction of that emitted by the sun. However, since we use devices for many hours a day, the proximity of screens to our eyes is a cause of concern for many ophthalmologists and other healthcare professionals.

Blue light rays make the sky blue

Short-wavelength, high-energy light rays at the blue end of the light spectrum scatter more quickly than other visible light rays when they hit water or air molecules in the atmosphere. This makes the sky appear blue without a cloud.

The human eye is not equipped to block blue light

The structures at the front of the eye (the cornea and the lens) prevent harmful UV rays from reaching the light-sensitive area at the back of the eye (the retina). Only about one per cent of the sun's UV rays can reach the retina without sunglasses. Sunglasses can block up to 100 % of UV rays, protecting the eye from damage that could lead to cataracts and cancer. This is not the case for blue light. When it comes to blue light, almost all of it passes through the cornea and lens and reaches the retina, making the eye susceptible to damage.

Blue light causes digital stress

Because of its high energy, short-wavelength blue light scatters more quickly than other visible light, as it is not easy to focus. Using your phone, computer, or any other digital device emits significant amounts of blue light. This unfocused light reduces contrast and can cause digital eye strain, resulting in symptoms such as eye fatigue, eye pain, itching, redness and headaches.

Research has shown that lenses that can block blue light with a wavelength shorter than 450 nm (blue-violet light) significantly increase contrast and help reduce eye strain.

Exposure to blue light can increase the risk of macular degeneration

Because blue light penetrates the retina, studies show that excessive exposure to blue light can damage the retina's light-sensitive cells. This causes changes similar to macular degeneration, resulting in permanent vision loss. Many ophthalmologists believe that additional exposure to blue light from smartphones, computer screens and other digital devices may increase the risk of macular degeneration later in life.

So, how can blue light glasses help?

Blue light glasses can block up to 30% of blue light exposure and help increase melatonin production. Melatonin is a hormone released in the brain that helps you sleep faster and better. So, the longer you wear blue light-blocking glasses, the more you'll be able to protect your eyes from digital strain, a common cause of blurred vision and headaches. They can be eliminated most effectively if we also take care of the correct posture at work and the breaks during which we exercise. The 20-20-20 rule, where every 20 minutes you should look 20 feet into the distance for 20 seconds, is also beneficial for relaxing your eyes.

Here are some additional benefits if you're still on the fence about whether or not you should order computer glasses.

They help increase melatonin production

As mentioned earlier, melatonin is the hormone responsible for controlling your body's circadian rhythm. Around sunset, the brain releases melatonin into your body, and this level decreases when you are exposed to light. Artificial blue light emitted by smartphones or computers disrupts this natural rise and fall of melatonin levels in your body. So, one of the fantastic benefits of wearing glasses with blue lenses is that they help the body maintain optimal melatonin levels. This, in turn, enables you to fall asleep faster and get enough sleep.

They regulate the release of cortisol

Cortisol, another hormone like melatonin, is essential to many bodily functions, such as maintaining blood pressure and blood sugar levels. Cortisol is also the "stress hormone" because this hormone is released in excess when your body is under stress. Cortisol is released in the morning, and its level gradually decreases during the day. Blue light glasses help maintain cortisol levels, as prolonged exposure to blue light is associated with fluctuating cortisol levels.

They are helpful for shift workers

Research has shown that shift workers, especially those on the night shift, are at greater risk of disruptions and fluctuations in their circadian rhythm. This can make these people more prone to various health problems such as diabetes, obesity, heart disease, cancer and digestive disorders. By wearing computer glasses, shift workers can regulate their internal body clock and reduce the risk of these deadly diseases.

They can prevent macular degeneration

Age-related macular degeneration, or AMD, is an eye condition in which a particular area of the retina (known as the macula) is damaged. A person with AMD will have normal peripheral vision but lose central sight. This means that a person cannot see fine details when looking at near or far away objects. Although there are many causes of AMD, the risk of AMD increases with prolonged exposure to blue light. This is because artificial blue light penetrates your eyes and reaches the retina, eventually damaging it. Blue light glasses provide this added benefit of mitigating these issues.

Advice from the experts

Do blue light glasses work?

Short answer? Yes! Blue light protection glasses have filters blocking blue light waves from any light source - the sun, screens, and light bulbs.

Research has shown that blue light affects our body's ability to produce melatonin, a hormone that helps us fall asleep. Wearing anti-blue light glasses while looking at screens, especially at night, can help ensure your body produces melatonin so you can rest and sleep well.

How do we clean blue light glasses?

First, always read the cleaning instructions that come with your blue light glasses when you buy them. In general, you can clean blue light glasses the same way as any other glasses - with a soft, lint-free, non-scratching cloth and a gentle eyeglass cleaning spray.

When should we wear Blue Light glasses?

Blue light generally energises you, helps you concentrate, and improves your mood - all good things for the day. But when the day ends, and you want to relax in the evening, blue light can disturb you. Most people will benefit from wearing blue light protection glasses in the evening while watching TV or any screen.

Some people also find that blue light-blocking glasses can help reduce eye strain, blurred vision, and headaches from staring at screens while working.