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Back-to-school season means new routines, fresh supplies, and—more than ever—more screen time. From interactive whiteboards in the classroom to laptops, tablets, and homework on Google Docs, students are spending hours each day looking at digital devices.
While technology can be a powerful learning tool, too much screen time—especially without breaks—can lead to digital eye strain (also called computer vision syndrome). The good news? A few simple habits can help protect your child’s eyes, boost comfort, and support learning all year long.
Why Screen Time Affects Kids’ Eyes
When kids look at a screen, they tend to blink less often—sometimes up to 50% less. This can cause eyes to feel dry, tired, or even blurry. Add in the blue light from digital devices, and the result can be headaches, trouble focusing, and even poor sleep.
And it’s not just about discomfort—eye strain can make it harder for kids to concentrate, affecting their reading comprehension and learning outcomes.
Top Tips for Protecting Your Child’s Eyes During Schoolwork
- Follow the 20-20-20 Rule
Every 20 minutes, have your child look at something at least 20 feet away for 20 seconds. This helps relax the focusing muscles in their eyes.
Pro tip: Set a gentle reminder or use a fun timer to make it a game.
- Create an Ergonomic Study Space
- Screen height: The top of the screen should be at or just below eye level.
- Distance: Keep devices about an arm’s length (50–60 cm) away.
- Lighting: Avoid glare by keeping screens away from direct sunlight or bright overhead lights.
- Encourage Outdoor Time
Studies show that spending at least two hours a day outdoors can help protect against myopia (nearsightedness). Swap some after-school screen time for fresh air and physical play.
- Keep Up with Regular Eye Exams
Even if your child seems to see well, some vision problems—like hyperopia (farsightedness) or binocular vision issues—don’t have obvious symptoms. An annual comprehensive eye exam with an optometrist can detect these early, before they impact learning.
In Ontario, annual eye exams are covered by OHIP for children 19 and under.
Signs Your Child May Be Experiencing Digital Eye Strain
- Squinting or rubbing their eyes frequently
- Complaining of headaches after schoolwork
- Holding screens too close or leaning in
- Avoiding reading or homework altogether
If you notice these signs, it’s time for an eye exam.
The Takeaway
Back-to-school prep isn’t just about pencils and backpacks—it’s about protecting your child’s vision in a screen-filled world. By setting healthy screen habits and booking an annual eye exam, you give your child the tools to see clearly, learn comfortably, and succeed in the classroom.