Screen Time
& Your Eyes
Your eyes work hard every day
Think about how many screens you look at in one day: a tablet for class, a phone for games, a TV for movies. Your eyes are amazing, but they were not built to stare at glowing screens for hours without a break.
Just like brushing your teeth protects you from cavities, learning healthy screen habits now protects your eyesight for life.
What happens to your eyes on a screen?
You Blink Less
Normally you blink about 15 times a minute. Screens cut that in half, so eyes get dry and tired.
Digital Eye Strain
Sore, tired eyes, headaches, and blurry vision are signs of “computer vision syndrome.”
Close-Up Focus
Holding a screen close and focusing for a long time works your eye muscles harder than looking far away.
Myopia Risk
Researchers are studying a link between heavy screen use and myopia (nearsightedness) in kids.
What the research says
Children with high screen time showed significantly higher odds of myopia than children with low screen time, across 19 combined studies.
A review across multiple countries found mixed evidence overall — showing the screen–vision link is real but still being studied closely.
Most reviews agree screen use beyond 2–3 hours per day for entertainment is linked to higher eye-health risks.
In a clinical study, patients who learned and practiced the 20-20-20 rule reported real improvement in dry, tired eyes.
A study on the 20-20-20 rule found only about a third of people — adults and kids — actually follow it regularly.
For every family, every age
Younger Learners (Grades 1–3)
- Big, simple idea: “Screens need breaks, just like we do!”
- Hands-on matching games over reading-heavy handouts
- Caregivers help build the habit together
Older Learners (Grades 4–6)
- A closer look at the research and the “why” behind each habit
- Self-monitoring tools: trackers, timers, goal-setting
- Peer conversation about realistic daily limits
Good habits vs. ignoring your eyes
If you build healthy habits
- Eyes feel comfortable, not tired or sore
- Better focus during homework and reading
- Fewer headaches after screen time
- Lower risk of vision problems later in life
- More energy for sports, friends, and play
If you ignore your eyes
- Dry, itchy, or blurry vision gets worse
- Headaches and neck/shoulder strain
- Trouble focusing in class or on homework
- Higher chance of needing glasses sooner
- Disrupted sleep from evening screen use
Your eye-healthy toolkit
20-20-20 Rule
Every 20 minutes, look at something 20 feet away for 20 seconds.
Arm’s Length Away
Hold screens at least an arm’s length from your face — not closer.
Get Outside
Aim for time outdoors every day — outdoor light helps protect growing eyes.
Screens Off Before Bed
Turn off screens 30–60 minutes before sleep to rest your eyes and mind.
A sample healthy screen day
| Time | Activity | Eye-Healthy Tip |
|---|---|---|
| 8:00 AM | Class / schoolwork on a tablet | Sit back; use the 20-20-20 rule |
| 12:00 PM | Lunch & recess | Go outside — give eyes a real break |
| 3:30 PM | Homework | Arm’s length distance; good lighting |
| 5:00 PM | Free time / games | Set a 2-hour daily limit for fun screens |
| 8:30 PM | Wind down | Screens off; read a book instead |
Handouts & activities at our booth
Take-Home Tip Card
A bilingual (English/Spanish) double-sided card with the 20-20-20 rule, arm’s-length reminder, and a QR code to multilingual vision resources.
Family Screen-Time Tracker
A simple weekly chart families take home to log screen time and outdoor time together, with stars for younger kids.
“Beat the Blink” Activity
Hands-on booth game: kids practice the 20-20-20 rule with a tape measure at 20 feet, or play a matching game pairing screen activities with healthy habits.
Community resources for families
NYC DOE/DOHMH Office of School Health – Vision Program
Free vision screenings, eye exams & glasses for NYC public school students, PreK–12. Call 311 or visit schools.nyc.gov.
Helen Keller Intl – US Vision Program
Free vision screenings, exams, and glasses partnered with NYC schools across all five boroughs since 1994. helenkellerintl.org
Prevent Blindness
National nonprofit with tip sheets on reducing digital eye strain and a directory of vision-care financial assistance. preventblindness.org
InfantSEE (American Optometric Association)
One-time, no-cost comprehensive eye exam for babies 6–12 months, regardless of income. infantsee.org • 888-396-EYES
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