A guide to blue light glasses.

Add a blue light filter to any pair of prescription or non-prescription Pala glasses for £25.


Blue light glasses have been designed to combat eye strain, improve sleep and reduce potentially harmful light exposure.

Our sustainable eyewear will help protect your eyes from such symptoms – but how exactly? Follow this guide to learn all there is to know about Pala’s new glasses collection.

Bio-acetate blocking glasses in green, brown and pink.

How do blue light glasses work?

Time to get technical. Blue light is a segment of the visible light spectrum responsible for keeping you alert, as you’ll agree this isn’t something you want 24/7. They work by having a special coating with a tint to block out the shorter wavelength blue light, whilst still allowing other colours of light to pass through.

It’s worth pointing out that blue light from a natural source, the sun being a fine example, is good for us. It helps regulate our mood as well as our sleep and wake cycle. However, when we excessively expose our eyes to rays from artificial sources, particularly after dark, there is strong evidence pointing towards this having a detrimental effect on your eyes.

Woman wearing blue light blocking glasses in a red cat eye shape.

This type of light penetrates your retinas, giving your brain a signal that it’s time to wake up and seize the day – by restricting the production of melatonin (a chemical which helps us sleep), blue light can disrupt your natural sleep cycle, aka circadian rhythm, causing you to feel lethargic, irritable and unproductive.

Research has proven that the peak wavelength devices and LED lights emit sits between 440-455mm. This is the most damaging wavelength and is primarily responsible for related health problems. So it is important when choosing frames with blue light protection that their filter tackles this range. Pala’s filter 50% at this range.

Man wearing blue light blocking glasses in a green round shape.

What are the benefits of wearing blue light glasses?

  • Improved sleep. Reduce your artificially created alertness to make it easier to fall asleep at night.
  • Increased energy and comfort. Decrease the chances of digital eye strain and the associated symptoms – eye fatigue, dry or sore eyes and even or even blurry vision and mental fatigue.
  • Better eye health. Filtering out artificial blue light can limit aggravation, particularly for people who suffer from light sensitivity.
Bio-acetate glasses in green, tortoiseshell and pink.

When should I wear blue light glasses?

Blue light blocking glasses are becoming increasingly popular for people who spend a lot of time in front of digital screens such as computers and smartphones. It is therefore recommended to wear this type of frame when you plan on spending more than two hours on screen time.

So if you frequently work in front of a laptop, indulge in a bit of gaming or like watching a film in bed, then blue light filtering glasses could be your friend. 

Woman wearing blue light blocking glasses in an oversized pink round shape.

They may even help prevent long-term issues that can damage the retina such as macular degeneration or cataracts. However, a cursory search on the web will tell you that there is not yet a consensus in the optometrist community as to whether this has been proven either way yet.

What we do know is that with the right pair of blue light glasses, you can keep your eyes feeling fresh, less dry and focused for longer. At night time, they will help you nod off with more ease and ensure a restful night’s sleep.

Man wearing blue light blocking glasses in a red brown square shape.

Do blue light blocking glasses really work?

The short answer is yes. Studies have found that wearing blue light glasses can reduce eye strain and fatigue caused by long periods of looking at a screen. Additionally, they can also reduce headaches associated with excessive exposure.

So, whether you require a prescription or not, you can maintain eye health and protect your eyes for the long term by investing in a pair of Pala blue light glasses.

Bio-acetate blocking glasses in brown tortoiseshell.

Choose from prescription lenses or non-prescription lenses and the added option of a high quality blue light blocking coating.

Of course we’ll be happy to help with any questions you may have. Just email the team at [email protected]

Look good, feel good, do good.

We donate 4% of every order to Vision Action to help provide accessible and affordable eyecare in Africa. Pala are on a mission to see the world better, and aim to build 5 vision centres by 2030. Following the success of the Chinsali Vision Centre in Zambia, we are fundraising for a new centre in the Northern Province of Sierra Leone.