With our screen time at an all time high, blue light blocking glasses have become increasingly popular. But do they really live up to the hype? In this blog, we’ll explore why blue blockers have gained traction, the effects of blue light, and how blue light blocking glasses may be able to help…

The last few years have seen blue blockers (otherwise known as blue light blocking glasses), rapidly gaining in popularity, and it’s a trend that shows no sign of waning. The popularity of blue blockers was triggered largely by the rise of remote working and online education during lockdown, but of course digital entertainment (binging box sets, gaming, and being glued to our phones!) has also significantly increased our exposure to screens.

It’s now common for people to experience ‘digital eye strain’, which is characterised by symptoms such as headaches, dry eyes, and difficulty concentrating after prolonged screen use. Blue light blocking glasses present a simple solution to combat these issues; they promise to filter out blue light emitted by screens, helping users feel more comfortable, and potentially even improving sleep quality.

With sleek, stylish designs now available, blue blockers are also seen as a fashionable and functional accessory (and a great excuse to wear cool glasses even if you don’t need a prescription!)

Blue light is a type of visible light with short wavelengths and high energy. While blue light is naturally present in sunlight and plays a role in regulating our sleep-wake cycle, excessive exposure to blue light (especially from screens) can have negative effects, such as:

Prolonged exposure to blue light can make it harder for your eyes to focus, leading to digital eye strain or "computer vision syndrome."

Blue light can interfere with the production of melatonin, the hormone responsible for regulating sleep. Using screens late at night can trick your brain into thinking it’s still daytime, making it harder to fall asleep.

Some studies suggest that excessive blue light exposure may contribute to retinal damage over time, although more research is needed to confirm this.

Blue light blocking glasses have lenses designed to filter out or absorb blue light. They work in two main ways:

Many blue blockers have a special coating that reduces the amount of blue light entering your eyes. This coating may also reduce glare, which can further alleviate eye strain.

Tinted lenses

Some blue blockers use tinted lenses, often with a yellow or amber hue, to neutralise blue light. These are particularly effective for evening use, as they help minimise the impact on melatonin production.

Whilst blue light glasses don’t block all blue light, they can reduce the intensity of exposure, which some people find helpful in managing symptoms of digital eye strain and improving sleep.

While blue light blocking glasses may not work for everyone, many people claim they make a big difference in reducing the symptoms of their blue light exposure. If you’re struggling with eye strain or sleep disruption due to screen use, blue blockers are certainly worth considering as part of your strategy to protect your eyes and improve your overall comfort.

Plus, with designers such as London Mole ensuring that blue blockers are becoming more and more stylish, these glasses are also a great excuse to try out some fashionable eyewear!