What is Blue Light? | Kanturo

What is Blue Light?


At Kanturo we offer a stunning range of blue light filtering glasses that offer protection while helping you to look amazing.

But what exactly is blue light and why should you care about it?

Here is absolutely everything you need to know.

kanturo's blue light blocking glasses & case

What is blue light?

Blue light is a short wavelength, high energy form of light that is found in lots of sources – both natural and artificial.

Light exists in a range of spectrums and colours, each having different effects on the way we see things. Blue light is one of the forms of light that we can see with our naked eye and falls within what is known as our visible spectrum.

Blue light occurs naturally but has increasingly become more prevalent in our day to day lives, thanks to devices like phones, TVs and computers.

Where does blue light come from?

The primary source of natural blue light is the Sun. In fact, the reason that the sky is blue is because of blue light being caught in the Earth’s atmosphere. Blue light can also be found at different levels in much of the technology that we interact with daily. Devices that produce blue light include:

• Computers

• Mobile Phones

• Tablets

• LED bulbs

• Fluorescent lighting

female model wearing anti blue light glasses

What does blue light do?

We have evolved to associate blue light with the daytime. Blue light exposure is an essential element of our circadian rhythm – the process that helps our body know when to sleep and when to wake.

In the past, our living routines were entirely shaped by the cycle of day and night. As such, when the sun sets, we naturally begin to feel tired due to the absence of blue light. With most of us looking at screens all evening we’re looking at blue light so much more than we used to.

How blue light affects you

Overexposure to blue light, beyond the natural levels experienced from the sun, can begin to have negative effects on your wellbeing.

Exposing your eyes to blue light from screens at night can disrupt your circadian rhythm and make your body believe that it is still the daytime. This can then make it harder for you to fall asleep and properly rest when you turn the lights off.

girl wearing blue light blocking glasses and red lipstick

Why is everyone talking about blue light?

Blue light has become a hot topic in recent years, with lots of speculation over the potential health and welfare impacts.

The increase in the use of LED technology is partly to blame. LEDs are more economical and environmentally friendly, but they emit more blue light. As LED usage has increased, so have concerns about the impact of blue light.

Before now, blue light was a relatively unresearched form of light with little known about its effects on our health.

Is blue light bad for your eyes?

There is no evidence yet that blue light can result in deterioration to your eyesight, but research is ongoing, and correlations have been found between blue light and other eye-related health issues.

Overexposure to blue light from screens can irritate your eyes and contribute to headaches. If you’ve ever experienced sore eyes after an extended amount of time looking at your phone or a computer screen, then you know the effect blue light may have.

girl wearing anti blue light glasses

Is blue light bad for your health?

Evidence is limited as to whether blue light itself is bad for your health, but some of the side effects attributed to it certainly are.

Poor sleep can have long-lasting effects beyond simply feeling a bit more tired. Sleepless nights or a bad sleep routine can result in weight gain, decrease in fertility, strain on your heart and may also contribute to conditions like diabetes.

Research has also revealed a potential link between blue light and increased incidents of cancer and depression.

How to protect yourself against blue light

Reducing your exposure and protecting yourself from blue light can have a positive impact on your health and wellbeing, resulting in more energy, less eye strain and better sleep.

While the simplest way to reduce your exposure to blue light is to cut down on your use of screens, this isn’t an option for everyone – especially when you work an office job or have your finger firmly on the pulse of social media.

Many devices have built-in options that reduce the amount of blue light emitted, but these will also reduce the vibrancy and range of colours that they can display. Filters can also be directly attached to your device or screen, but again these can be bulky and reduce the quality of the display.

The easiest option is to wear blue light blocking glasses.

ladies anti blue light eyewear

What are blue light glasses?

Blue light glasses provide a filter to block or absorb blue light and reduce your exposure. The lenses used in these glasses stop the majority of blue light from passing into your eyes, letting you focus on getting on with your work or enjoying your screen time.

Sometimes known as computer glasses, because of the amount of blue light that is present in computer screens, these glasses act as a line of protection to help reduce the negative impacts of blue light.

While other blue light solutions can reduce the quality of your experience or can be inconvenient, using blue light glasses is as simple as popping them on whenever you feel you might be exposed.

Do blue light glasses work?

Blue light glasses are a relatively new technology, but they have quickly become an important part of many users lives.

People who use blue light glasses at work or in their daily lives report that they have helped to reduce headaches, improve their sleep and cut down on eye irritation. You can read more on blue light & its affect on sleep in our blog post here.

girl in blue light blocking glasses and beanie

Should you wear blue light glasses?

If you often work with screens, or if you feel like they are having a detrimental impact on your health, blue light glasses can be one of the best ways to provide simple and stylish protection.

Blue light glasses from Kanturo offer protection from the ill effects of blue light, and they come in a range of styles for both men and women. Gone are the days of cumbersome, yellow computer glasses – Kanturo glasses are cute, stylish and the perfect remedy to your day to day blue light woes.

Shop women's blue light blocking glasses here or men's here.