
The Truth About Blue Light Glasses: Do You Really Need Them?
- Sophie Boulderstone

- Aug 15
- 4 min read

The Truth About Blue Light Glasses: Do You Really Need Them?
In an age where we’re surrounded by screens – phones, laptops, tablets, TVs – interest in blue light glasses has exploded. You’ve likely seen headlines promising better sleep, less eye strain, and protection from the mysterious evils of digital glare. But do these glasses actually deliver? Or are they just another eyewear fad? Let’s uncover the real story, so you can make confident choices for your vision and wellbeing.
What is Blue Light, Anyway?
Blue light is a type of high-energy visible (HEV) light. It’s naturally produced by the sun, but digital devices – like computers, smartphones, and LED lamps – shine a concentrated dose directly into our eyes. While blue light plays a role in regulating our mood and sleep-wake cycle (circadian rhythm), too much exposure, especially late at night, may have consequences for health and comfort.
Why the Hype About Blue Light Glasses?
Blue light glasses are specially coated to block or filter blue wavelengths. Eyewear companies often claim that wearing these lenses can:
- Reduce digital eye strain
- Protect eye health for the long-term
- Improve sleep quality if used before bed
But are these claims backed by science? Let’s look at each, myth-busting style — with a nod to clarity and your real-life experience.
Myth 1: Blue Light Glasses Instantly Cure Screen-Related Eye Strain
The reality is more nuanced. Staring at screens causes discomfort for many reasons: dry eyes, poor posture, infrequent blinking, glare, and focusing fatigue – not just blue light itself. While some studies show that blue light filters may add comfort, the effect is often modest. Most experts agree that the biggest causes of screen fatigue are lifestyle-related: long periods of near focus and not taking breaks.
Pro tip: Follow the 20-20-20 rule. Every 20 minutes, look at something 20 feet away for at least 20 seconds. Blink often and adjust lighting to reduce glare.
Myth 2: Blue Light Damages Your Eyesight in the Long Run
This is a common fear, but according to leading health organisations (like the American Academy of Ophthalmology), there’s no strong evidence that blue light from screens leads to permanent eye damage or diseases like macular degeneration. Our eyes are naturally built to handle exposure to sunlight, which is far more intense. The discomfort you might feel is usually temporary and related to how you use your devices – not the blue light itself.
Myth 3: Blue Light Lenses Guarantee Better Sleep
This is where things get interesting. Blue light does play a genuine role in regulating sleep and wakefulness, by influencing melatonin production. Using screens in the hour or two before bed can delay melatonin and make sleep elusive for some people. There is some emerging evidence that blue light-blocking glasses – worn in the evening – can help some people fall asleep more easily, especially if you’re sensitive to screen time at night. But it’s not a miracle fix – and other habits (like winding down away from devices) are just as important.
Science-Backed Benefits (and Limitations)
So, should you get blue light glasses? Here’s a balanced take:
- They may bring mild relief from eye strain for some wearers, particularly if your screen time is high.
- They may help night owls or shift workers who must use screens after dark enjoy slightly better sleep quality.
- For most people, the key to comfort is taking regular breaks, adjusting settings, and optimising your workspace.
If you already need prescription lenses, a blue light coating can be easily added for a relatively small cost. Think of it as a “nice-to-have,” not a must-have for everyone.
Do You Need Them? How to Decide
Ask yourself:
- Do you experience frequent headaches or sore eyes after screen use — despite regular breaks and good lighting?
- Do you work late or scroll in bed, and struggle to wind down?
- Would you appreciate a little extra comfort or a subtle lens tint?
If the answer is yes, blue light glasses could be worth a try – but focus on ‘whole picture’ eye health too. Hydration, blinking, posture, and tech habits all matter!
Buying Tips: What to Look For
If you’re interested in trying blue light glasses, look for:
- Clear information: Transparency about the filter strength (some lenses only block a small percentage – check before you buy).
- Comfort first: A frame style that fits your face and lifestyle (no compromise on looks or wearability).
- Personal service: At Daxie’s Jojo Boutique pop-ups, our eyewear team is happy to answer questions and help you see the difference for yourself with sample lenses.
The Bottom Line
Blue light glasses aren’t a miracle cure, but they’re not a gimmick either. For some, they really can take the edge off digital life, especially if paired with other healthy habits. And if you enjoy the subtle style of a lens tint, all the better!
Want to know if blue light lenses are right for you? Pop by one of our Jojo Boutique pop-ups in August or drop us a message online. We’re here to help you navigate the ever-changing eyewear world, honestly and expertly.
To learn more about eye health, blue light, and all things eyewear, visit daxieeyewear.com or follow us for style and science, all month long.




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