Screen Time After Concussion: How Much Is Too Much?

Screens and concussion: it's complicated

One of the most common questions we hear after a concussion is "can I use my phone?" The answer is more nuanced than a simple yes or no.

Screens can absolutely make concussion symptoms worse. Headaches, eye strain, nausea, dizziness, and cognitive fatigue are all commonly triggered or aggravated by screen use after a concussion. This is real and not something to push through.

But complete screen avoidance for weeks isn't the answer either. Current evidence suggests that brief periods of screen use — within your tolerance — are safe and don't slow recovery. The key is managing exposure, not eliminating it.

Why screens are harder after concussion

Several concussion-related dysfunctions make screens particularly challenging:

• Oculomotor dysfunction — your eyes may not be tracking, converging, or accommodating efficiently, making sustained visual focus exhausting
• Visual-vestibular conflict — scrolling content creates visual motion that conflicts with your balance system's signals
• Increased cognitive demand — processing screen content requires more brainpower than usual when your cognitive capacity is reduced
• Light sensitivity — screen brightness and blue light wavelengths can trigger headaches in patients with post-concussion light sensitivity

Practical screen management during recovery

The first 24–48 hours

Minimize screen use. This is the acute phase where rest from cognitive stimulation is most important.

Days 3–7

Begin introducing short screen sessions. Start with 5–10 minutes and see how you respond. If symptoms don't increase significantly, you can gradually extend.

Week 2 and beyond

Use your symptom response as the guide. If you can tolerate 20 minutes without a meaningful increase in symptoms, that's your current baseline. Build from there gradually.

General principles

• Use the 20-20-20 rule — every 20 minutes, look at something 20 feet away for 20 seconds
• Reduce brightness and enable dark mode where possible
• Avoid scrolling-heavy content early in recovery (social media, fast-moving video)
• Prefer audio over video when possible (podcasts instead of YouTube)
• Stop before symptoms peak — if you're at a 3/10 and climbing, stop now rather than waiting until you hit 7/10
• Track your tolerance — knowing your limits helps you plan your day

When avoidance becomes the problem

If you've been avoiding screens for weeks and your tolerance hasn't improved, that's actually a sign you may need treatment — not more avoidance.

Prolonged screen avoidance can prevent the brain from recalibrating the systems it needs for visual processing. Just like a muscle that weakens without use, the oculomotor and visual-vestibular systems need appropriately calibrated challenges to recover.

A concussion physiotherapist can assess what's driving your screen intolerance and design a program that progressively rebuilds your tolerance — through targeted oculomotor exercises, vestibular rehabilitation, and graded exposure.

For parents

If your child has had a concussion, screen management can be one of the hardest parts. Complete screen restriction creates conflict and doesn't help recovery. A better approach: set time limits based on their tolerance, use breaks, and prioritize low-demand screen activities (music, audiobooks) over high-demand ones (gaming, social media, homework on a laptop).

If screen tolerance isn't improving within the first couple of weeks, a concussion assessment can identify whether there's an underlying issue that treatment can address.