📱 Kids, Screens & Growing Bodies: What New Research Says About Posture and Eye Health
- Julian Simpson
- 13 hours ago
- 4 min read
📱 Kids, Screens & Growing Bodies: What New Research Says About Posture and Eye Health
Screens are everywhere — tablets at school, phones at home, laptops for homework, and streaming in between. And while technology can be incredibly helpful, a new 2024 scoping review has raised an important question:
👉 How is prolonged screen time impacting children’s posture, eyesight, and development?
The review analysed 27 studies from 2019–2024, looking at how smartphones and tablets affect kids aged 6–18. The results give parents, carers, and health professionals plenty to think about.
👁️ Visual Health: More Screen Time = More Eye Problems
One of the clearest findings from the research is the rise in myopia (short-sightedness) among young people. Several studies show:
📈 Up to a 30% increase in myopia linked to smartphone use
📈 An 80% increase linked to computer use
👧 Higher rates in girls
🏙️ Higher rates in urban areas
🧒 Myopia increasing with age and school demands
But it doesn’t stop at blurry vision.
Kids also experience:
Eye strain
Irritation or burning
Blurred vision
Headaches
Computer Vision Syndrome (a mix of visual and neck symptoms)
One study found 60% of kids who used their phone for just 1+ hour reported eye fatigue.
A big contributor?👉 Screens often replace outdoor time — and natural light is essential for healthy eye development.
🏃 Postural Health: Screens Change How Kids Sit, Stand & Grow
The review shows a strong connection between prolonged screen use and musculoskeletal pain, especially in the:
Neck
Shoulders
Upper back
Lower back
Researchers found that sustained screen time often leads to:
Forward head posture
Increased neck flexion
Reduced lumbar lordosis (the natural curve of the low back)
Poor pelvic alignment
Spinal asymmetry
More sitting and less movement
Some studies also linked screen time to nonspecific low back pain in kids as young as six who used screens for 3+ hours a day.
During the COVID-19 pandemic, when school moved online:
Smartphone addiction went up 53%
Kids were using screens an average of 6.8 hours per day
The most common complaints?👀 Eye problems (39.7%)🦴 Neck pain (39.1%)
🧠 More Than Posture & Eyes: Screens Affect Brain Development Too
The review also highlighted neurodevelopmental concerns such as:
Shorter attention span
Irritability
Behavioural changes
Delayed language acquisition
Poor sleep
Reduced social skills
Early screen exposure, especially without supervision or limits, can disrupt stages of neurological development described by Piaget.
📍 The Strongest Overall Message
Studies from Asia, Europe, Oceania, and the Americas all showed the same trend:
Prolonged screen time negatively affects kids’ visual health, posture, and overall wellbeing.
And these effects have grown dramatically since the COVID-19 pandemic.
🛡️ So What Can Parents Do?
Here are research-supported strategies:
🧒 1. Follow the “3–6–9–12 Rule”
Created by French psychiatrist Serge Tisseron:
Under 3: No screens
3–6: Limited supervised use
6–9: No personal devices
9–12: Regulated internet use
12+: Gradual independence with supervision
⏱️ 2. Use the 20-20-20 rule for eye breaks
Every 20 minutes:👉 Look 20 feet away (6 metres)👉 For 20 seconds
🧘 3. Encourage posture-friendly habits
Keep screens at eye level
Support the lower back
Avoid long periods of looking down
Use chairs with proper back support
Take movement breaks every 30–40 minutes
🌳 4. Prioritise outdoor time
30–90 minutes of natural light daily reduces the risk of developing myopia.
🛏️ 5. No screens before bed
Screens disrupt melatonin production and sleep quality.
👨👩👧 6. Active supervision
Guidelines from UNICEF emphasise co-viewing and helping kids navigate digital life safely.
🏥 How Healthwise Chiropractic Can Help
We see the effects of screen time every day — sore necks, headaches, rounded shoulders, and reduced spinal movement in kids and teens.
Our care plans support:
Better posture
Healthier spinal development
Reduced pain from screen-related strain
Advice for families on ergonomics and screen habits
Vision–posture link assessments (yes, it’s all connected!)
If your child is experiencing eye strain, headaches, neck pain, shoulder tension, or poor posture, a chiropractic assessment can help identify early signs and create a plan to support their growth.
Neck Pain Chiropractor
Q: What causes neck pain that chiropractors treat?Common causes include poor posture, desk work, whiplash, and muscle tension.
Q: How does chiropractic care relieve neck pain?Through gentle spinal adjustments, soft tissue therapy, and posture correction.
Q: Is it safe to adjust the neck?Yes, when performed by a qualified chiropractor, neck adjustments are safe and effective.
Q: Can chiropractic help with tech neck?Absolutely — chiropractic care can ease strain from long hours at computers or devices.
For more information about how we can help YOU with your neck pain and improve your underlying dysfunction so the problem doesn’t come back . Please call Health Wise Chiropractic 03 9467 7889 or book online to see one of our Chiropractors in Sunbury or Melton/Strathtulloh Today!
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Ellis Sandoval N, Peña Martinez MI, Fernandez Cea AB, Hernandez Rincon EH. Effects on Prolonged Screen Time on Postural Health and Visual Health in Children and Adolescents: A Scoping Review. Orthop Res Rev. 2025 Nov 19;17:553-562. doi: 10.2147/ORR.S519541. PMID: 41292679; PMCID: PMC12641052.
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