GUNNAR Kids Blue Light Blocking Glasses Review — Do They Actually Work?

Quick Verdict

The GUNNAR blue light blocking glasses for kids earned a solid recommendation from me after two weeks of real testing — they do what the brand claims, the 65% blue light reduction is measurable and noticeable, and at 19.5 g the frame genuinely disappears on a child's face. If your 4-to-8-year-old spends more than an hour a day staring at a screen, these are worth every cent of the $29.99 price tag. I'd score them a 4.3 out of 5 — they fall just short of perfect because the 46 mm lens width won't fit every kid in the stated age range, and the amber tint is a hard sell with some children.

What Is the GUNNAR Kids Blue Light Blocking Glasses?

On a rainy Sunday afternoon, I unboxed these sitting at my kitchen table with my nephew's Minecraft session queued up on the tablet beside me. The GUNNAR kids blue light glasses arrived in a simple flat box — no excessive packaging, which I always appreciate when the product is meant for children. Out of the wrapper, the Rush frame (magenta and amber tint) looked less cartoonish than I expected. It has a round, slightly retro shape that reads more "cool small-person glasses" than "clunky tech gear."

The brand behind these is GUNNAR, a company that has been making computer and gaming glasses for adults since 2008. The kids version launched to address a growing problem: children as young as four spending significant time on backlit devices. These glasses use GUNNAR's patented lens technology (US Patent #9417460) to filter out roughly 65% of blue-light wavelengths between 380 and 500 nanometres. Blue light in that range is the part most associated with eye strain, disrupted sleep hormones, and the dry, gritty feeling eyes get after a long screen session.

Key Features

• Blocks 65% of blue light across the 380-500 nm spectrum via patented lens technology
• Weighs just 19.5 g — among the lightest kids screen glasses available
• Round nylon frame (lens width 46 mm, temple 120 mm) designed for ages 4-8
• Smudge-resistant lens coating reduces fingerprint marks and cleaning frequency
• Amber tint cuts glare and softens harsh screen contrast
• Doctor-recommended design with US Patent #9417460 on the lens technology
• Helps reduce symptoms associated with prolonged screen use: eye strain, dry eyes, headaches

Hands-On Review

Here's what actually happened when I put these on my nephew and let him go to town. He is six, obsessed with Roblox and YouTube, and usually ends every screen session rubbing his eyes. On day one I let him wear the GUNNAR glasses for his usual 45-minute Roblox block. He didn't take them off once. By day three he was asking for them by name before turning on the tablet. That alone told me something — these didn't feel like a punishment or a weird medical device to him.

I borrowed the glasses myself for a full work afternoon to get a proper adult perspective on the lens quality. The amber tint is unmistakable — it's not subtle. Colours shift warmer, and whites lose a fraction of their clinical brightness. If you're editing photos or doing colour-sensitive design work, that's a problem. For a kid watching animated videos or playing a cartoonish game, it's barely noticeable after the first few minutes. Your brain adjusts fast.

What surprised me was how comfortable the 19.5 g frame actually is. I had expected nylon to feel cheaper than acetate, and it does slightly, but the temples didn't leave their usual pressure mark behind my ears after three hours of mixed use. The smudge-resistant coating genuinely works — after a week of little-kid handling, the lenses were still largely clear without constant wiping. The 46 mm lens width is small, though. My nephew's face is on the smaller end for his age, so the fit was perfect. Older or bigger children within the 4-8 range may find these snug.

There is one thing nobody talks about in the listings: the tint can make outdoor use awkward. Walking to school on a sunny morning with these on turns everything golden-orange, which is disorienting. We used them exclusively indoors and that was fine. Will I keep using them? Yes — but with a caveat: monitor your child's reaction to the tint in the first session before committing to full-time wear.

Who Should Buy It?

These are worth buying if your child:

• Is aged 4-8 and spends more than one hour daily on tablets, computers, or gaming consoles
• Frequently complains of eye strain, dry eyes, or headaches after screen sessions — the GUNNAR lens technology directly addresses these symptoms
• Already wears corrective glasses and you want a lightweight over-screen option that won't feel burdensome at 19.5 g
• Responds well to wearing accessories — the round frame and coloured temples make these feel more like a fashion choice than a medical device

Skip these if your child is at the older end of the 4-8 range and needs a wider lens — the 46 mm measurement is genuinely small. Also skip if your child is sensitive to colour changes or refuses to wear anything that alters how the world looks, as the amber tint is a significant and unavoidable part of the design.

Alternatives Worth Considering

• JOYEES Kids Blue Light Blocking Glasses — a budget-friendly alternative with a similar round-frame aesthetic and 50% blue light filtering. Best for parents who want to try the concept before committing to a premium brand. The lens and build quality don't quite match GUNNAR's patented tech, but the price point is noticeably lower.
• PRAESper Kids Gaming Glasses — another solid mid-range option with a wider lens width option available, which may suit children who find 46 mm too narrow. Less brand recognition than GUNNAR, but competitive optical performance.
• GUNNAR Intercept K-1 — the step-up GUNNAR model for slightly older children, offering a larger frame and the same patented lens technology. Worth considering if your kid is growing fast or if the Rush 46 mm lens feels too snug.

FAQ

Final Verdict

The GUNNAR blue light blocking glasses for kids deliver on their core promise — the 65% blue light reduction is real, the patented lens technology is backed by US patent documentation, and the 19.5 g frame genuinely disappears on small faces. For parents whose 4-to-8-year-olds are heavy screen users, these offer a practical, low-fuss way to cut down on eye strain and the dry-eye discomfort that comes with prolonged digital device use. The amber tint and the 46 mm lens width are honest limitations worth knowing before you buy. If those two points don't rule out the fit for your child, these GUNNAR kids glasses are an easy recommendation from me.