Three students are sitting at desks in a classroom, working on their notebooks with pens, one girl with a bracelet and long hair, a boy with short hair, and a girl with glasses, with sunlight coming through a window in the background.

Back-to-school season brings new routines, new assignments, and often much more screen time. Between classroom technology, online homework, tablets, laptops, phones, and recreational screen use, children’s eyes are working harder than ever.

Modern screens do not usually damage the eyes in the way many parents were once warned about. However, long periods of screen use can still create discomfort, eye strain, headaches, dryness, blurry vision, and trouble shifting focus from near to far.

At London Eyecare in London, Ontario, pediatric eye care can help families understand whether a child’s screen habits are normal, whether glasses may be needed, or whether glare-reducing lens options could make the school year more comfortable.

Why Back-to-School Screen Time Can Affect Vision Comfort

Screens require the eyes to focus up close for long periods. When children concentrate on a device, they often blink less, hold screens too close, and forget to take breaks. This can make their eyes feel tired, dry, or strained.

During the school year, these symptoms may become more noticeable because children are also reading, writing, copying from the board, and switching between near and far distances throughout the day.

Common signs of screen-related visual discomfort include:

Headaches after school or homework
Blurry vision after using devices
Eye rubbing
Squinting
Dry or irritated eyes
Trouble focusing after screen use
Holding tablets or books close to the face
Avoiding reading or homework
Complaints that words move, blur, or double

These symptoms do not always mean something serious is wrong, but they are worth checking if they happen often.

Sitting Close to a Screen May Be a Clue

If your child sits close to the TV or holds a tablet very near their face, the screen itself may not be the problem. The behaviour may be a clue that your child sees more clearly up close than far away.

This can happen with myopia, also called nearsightedness. A child with myopia may see a book or tablet clearly but struggle to see the board at school, classroom displays, road signs, or people across a room.

Children may not realize their vision is blurry. They often adapt by moving closer, squinting, or avoiding tasks that feel difficult.

School Screenings Can Miss Some Vision Problems

School vision screenings can be helpful, but they are not a replacement for a comprehensive pediatric eye exam. A screening may catch some distance vision issues, but it may not fully evaluate focusing ability, eye teaming, eye health, visual comfort, or how your child’s eyes function during near work.

A child may pass a school screening and still have symptoms during reading, screen use, or classroom learning. A full eye exam gives your optometrist a clearer understanding of your child’s vision, eye health, and visual development.

Eyeglasses for Screen Glare and Classroom Comfort

If your child needs glasses, lens choices can make a difference. The right prescription is important, but lens treatments can also support clearer, more comfortable vision during the school day.

For children who spend a lot of time on screens, your eye care team may discuss options such as anti-reflective coatings or blue light filtering lenses. Anti-reflective coatings help reduce reflections from screens, overhead lights, and headlights. Blue light filtering lenses may also be discussed for children who spend extended time using digital devices.

These lens options do not replace healthy screen habits, but they can be part of a better back-to-school vision plan when recommended for your child’s needs.

When Screen Symptoms May Need More Than Standard Glasses

Some children and teens experience headaches, eye strain, or visual fatigue because their eyes are working harder to coordinate during near tasks. In some cases, even a small eye alignment issue can contribute to discomfort during reading, homework, or screen use.

A comprehensive eye exam can help determine whether symptoms are related to prescription changes, focusing strain, eye coordination, dry eye, or another concern. If needed, your optometrist can discuss personalized lens options designed to support more comfortable vision throughout the day.

Healthy Screen Habits for the School Year

Good screen habits can help reduce digital eye strain. Encourage your child to:

Follow the 20-20-20 rule
Keep screens at a comfortable distance
Use good lighting while reading or doing homework
Reduce glare from windows and lamps
Blink often during screen use
Take breaks between online assignments
Avoid screens right before bedtime
Spend time outdoors when possible
Wear prescribed glasses as directed

The 20-20-20 rule is simple: every 20 minutes, look at something about 20 feet away for at least 20 seconds. This gives the focusing system a short break.

Schedule a Back-to-School Eye Exam

If your child is complaining of headaches, sitting close to screens, holding devices near their face, rubbing their eyes, or struggling with reading and homework, it may be time for a comprehensive eye exam.

At London Eyecare our team can check your child’s vision, eye health, focusing ability, and back-to-school visual comfort in London, Ontario. /book-appointment/ to help your child start the school year with clearer, more comfortable vision.

Back to School FAQs

Can screen time damage my child’s eyes permanently?

Modern screens do not usually cause permanent eye damage, but long periods of screen use can contribute to temporary eye strain, headaches, dryness, and blurry vision.

Why does my child sit so close to the TV or tablet?

Sitting close may be a sign that your child sees better up close than far away. This can happen with myopia, or nearsightedness, and should be checked during an eye exam.

Can glasses help with screen glare?

Yes. If your child needs glasses, lens treatments such as anti-reflective coatings or blue light filtering lenses may help reduce glare and improve visual comfort during screen use.

Is a school vision screening enough?

No. School screenings can miss focusing problems, eye teaming issues, eye health concerns, and some prescription needs. A comprehensive pediatric eye exam is more complete.

When should I book an eye exam for my child?

Book an exam if your child squints, sits close to screens, holds devices close, complains of headaches, rubs their eyes, avoids reading, or struggles to see the board at school.