When a child is born, their eyes are actually quite short, which makes them farsighted. As they grow, the eye lengthens to reach "emmetropia"—perfect vision. However, if the eye grows just a little too long, you get myopia. You get the squints. You get the $400 bill at the optometrist.

Why is this happening? Two main reasons:

So, while we're worried about the "brain rot" of a Skibidi Toilet marathon, the physical reality is that the distance to the screen and the indoor setting are the real culprits.

Let’s clear this up: The sun emits way more blue light than your kid’s iPad. The reason your eyes hurt after a four-hour session of Fortnite isn't "blue light toxicity"—it’s Digital Eye Strain.

When we stare at screens, we stop blinking. Normally, humans blink about 15-20 times a minute. When we’re locked into an intense round of Among Us, that rate drops by 50% or more. This dries out the cornea, leading to that gritty, tired feeling.

Ask our chatbot about whether blue light glasses are worth the money

You don’t need to ban tech to save their eyes. You just need to implement a few "digital hygiene" habits that are backed by actual ophthalmology, not Instagram ads.

This is the gold standard. Every 20 minutes, have your child look at something at least 20 feet away for at least 20 seconds. This allows the ciliary muscle inside the eye to relax.

Kids have a weird habit of holding phones right up to their noses, especially when they’re hiding under the covers. Encourage them to keep devices at "elbow distance"—the distance from their knuckles to their elbow when their fist is against their chin.

If your kid wants to watch Bluey or The Super Mario Bros. Movie, put it on the big TV. The further the screen is from their eyes, the less strain they experience. Handing them a smartphone for a feature-length film is an invitation for eye fatigue.

This is the hardest one for modern parents, but it’s the most effective. Research suggests that 120 minutes of outdoor light per day significantly reduces the risk of developing myopia. It doesn't even have to be "active" time—reading a book on the porch or playing Pokemon GO at the park counts.

One of the best ways to protect their eyes is to shift the "entertainment" burden away from the visual cortex. We’re big fans of "Eyes-Off" tech.

This is the gold standard of kids' podcasting. It’s high-energy, hilarious, and scientifically accurate. It gives them that "YouTube energy" without the actual screen.

Think of this as Netflix for the ears. It’s a subscription service full of high-quality audiobooks, podcasts, and music. Great for car rides where you’d normally hand over a tablet.

If they must use a screen, this is a great compromise. Famous actors read children's books. The "animation" is minimal and slow-paced, which is much easier on the eyes than the frenetic editing of modern YouTube Kids content.

For school-related screen time, we prefer platforms that use high-contrast text and clear layouts. Zearn is a math platform that manages to be engaging without being a visual nightmare.

Check out our full guide on the best podcasts for kids

The American Academy of Pediatrics still recommends almost no screen time here (except video chatting with Grandma). This isn't just about brain development; it's because these are the most critical years for eye-to-hand coordination and depth perception, which screens simply can't provide.

At this age, the eyes are still very plastic. If they are using apps like Khan Academy Kids, keep sessions short (15-20 mins) and ensure the room is well-lit. Dark rooms + bright screens = maximum strain.

This is when Roblox and schoolwork collide. This is the prime age for myopia onset. This is the time to be a stickler about the 20-20-20 rule and the outdoor time.

Teens will spend hours on TikTok. At this point, it's about ergonomics. Are they hunched over? Is the brightness cranked to 100% in a pitch-black room? Talk to them about "Dark Mode" and using "Night Shift" settings to warm up the screen colors in the evening, which helps with sleep (even if it doesn't "save" their vision).

There is one thing that is legitimately bad for eyes: using a bright screen in a completely dark room. When the surrounding environment is dark, the pupil dilates to let in more light. Then, the bright screen hits that dilated pupil with a concentrated beam of light. It’s exhausting for the eye muscles and can lead to headaches and severe strain.

If they’re gaming or doing homework, keep a lamp on. Bias lighting (a strip of LED lights behind a monitor or TV) is also a great, cheap way to reduce strain.

Don't make it about "taking away their fun." Make it about "performance."

Learn more about how to set healthy boundaries without the drama

Your child’s eyes are incredibly resilient, but they weren't designed to stare at a glowing rectangle 10 inches away for six hours a day.

You don't need to buy the $50 blue-light-blocking glasses. You don't need to delete Minecraft. You just need to get them outside, encourage them to use the "big screen" instead of the "little screen," and remind them to look at the trees every once in a while.

Digital wellness isn't just about what's happening inside their heads—it's about the physical health of the "hardware" they use to see the world.

Ask our chatbot for more tips on digital eye health