Products featured in this Yahoo article are selected by our shopping writers. We will earn a commission from purchases made via links in this article. Pricing and availability are subject to change.

Do blue light glasses work? I asked an optometrist about the benefits and how they can affect sleep quality

As someone who spends hours a day staring at screens, I tested two pairs of blue light glasses to help with my eye strain.

two pairs of blue light glasses on blue background
Are blue light glasses worth it? I tested two pairs (Getty Images).

Since becoming a writer, I spend several hours a day (we're talking up to 14!) staring at screens. I’ve worn blue light glasses for a while, and they’ve gotten me through several school assignments and writing projects. I rarely stare at a screen without them. Blue light glasses help relax my eyes, and I like that when I wear them, I can look at brighter settings without squinting.

Quick overview
See 2 more

While I personally swear by them, I wanted to get an expert take on the matter: Are blue light glasses worth it? To answer that question, I spoke to Dr. Abraham Yuen, the director and lead optometrist of Downtown Vision in Toronto, Ont.

Yuen says blue light can result in eyestrain, fatigue and sleep disruption without protection. “It can keep us awake,” he tells Yahoo Canada. He explains that excess digital screen exposure acts similarly to artificial sunlight, affecting our usual sleep-wake cycle. Yuen advises being mindful when shopping for lenses. “Some [lenses] may have anti-scratch and anti-reflective features, while some may not block blue light due to improper coatings."


Blue light is one of several colours in the electromagnetic spectrum that is visible to the human eye. According to the Canadian Association of Optometrists, natural blue light comes from the sun. It helps maintain our circadian rhythm and boosts our mood, memory and cognitive focus. Blue light is also extremely common — it’s in fluorescent lighting and the screens of our electronic devices.

Close-up of a female programmer wearing glasses, deeply engaged in analyzing code on her computer screen. The image captures the reflections of code, emphasizing concentration and modern technology in a STEM environment.
Are blue light glasses worth it? (Getty Images)

Simran Bains from the Canadian eye care brand KITS adds that excess exposure to blue light could lead to health implications.

“My sleep was affected before I started wearing it,” she says. According to Bains, exposure to blue light suppresses melatonin production, which could result in a weakened immune system. “It’s useful to start [wearing blue light glasses] if you aren’t already,” she adds. “The less you wear them, the more your eyes will eventually become dried out.”


According to the Canadian sleep clinic Sleep Therapeutics, blue light can significantly impact sleep quality. Overexposure to blue light before bedtime can not lead to trouble falling asleep but may decrease overall sleep quality by suppressing melatonin production.


Brunette with dark top and cardigan wearing leopard blue light glasses from Amazon in front of white bathroom door
Wearing blue light glasses from Amazon. (photo via author)

These affordable blue light glasses from Amazon Canada have been my go-to pair for years. I love that you get three pairs for $20. They’re lightweight, come in three different colours and several style options.

While I love them, smudge marks can be hard to wipe off, and the coating doesn’t last very long. Sadly, I’ve experienced some eyestrain and a slight twitch in one eye. They're great for light reading or answering a few emails but not for hours staring at a screen.


Brunette with black top and dark red cardigan taking a selfie wearing thick leopard blue light glasses from KITS in front of bathroom door
Wearing blue light glasses from KITS. (photo via author)

It’s been a month since I got my first pair of glasses from the Canadian brand KITS. And so far, I have little to no complaints. My eyes haven’t felt strained, the twitching stopped, and I like that they had sizes available for all face shapes. I'm wearing a large, and it fits my face like a glove. They’re not as lightweight as Amazon’s, but I actually prefer that. They don't feel flimsy, and you can tell they won't break easily or wear out in a few months. I also got slightly thicker frames, and I like that they feel less rigid than the other ones I’ve had. It’s easier to wipe off smudge marks than with the Amazon pair, and I like the overall feel and quality of the lenses.


Blue light glasses are a must for me. When I wear them, I can work for hours, scroll my phone without worry and watch TV for as long as I want. I also find that I'm more focused and can work without eye strain — my eyes don't feel nearly as dry or as tried as they do without blue light glasses.

If you're considering buying a pair, both sets from Amazon and the Canadian brand KITS are worth trying. The Amazon glasses are affordable and lightweight, and KITS's blue-light glasses are high-quality with a crystal-clear blue-light coating. Between the two, I prefer the pair from KITS, but overall, any blue light protection is better than none.


These made-in-Canada blue light-blocking glasses are "incredible" and come in several colourways.

$38 at KITS
Warby Parker

Warby Parker's popular Esme glasses come in five colourways and progressive, blue-light-filtering, and anti-fatigue lenses.

$150 at Warby Parker

These stylish Ray-Ban glasses are built with blue-violet light filtering lenses.

$248 at Clearly

These "Amazon's Choice" blue light glasses help with eye fatigue, blurred vision and headaches.

$20 at Amazon

Shop these stylish blue light-filtering glasses in two frame options.

$259 at Clearly

The reviews quoted above reflect the most recent versions at the time of publication.

Let us know what you think by emailing us, commenting below and tweeting @YahooStyleCA! Follow us on Twitter and Instagram.