Screens are part of education and entertainment. Prolonged use can be associated with fatigue, headache, dryness, and temporary blurred vision, mainly because we look at them up close for a long time and blink less frequently.
Does blue light damage children's eyes?
There is insufficient evidence that blue light from common screens causes retinal damage. However, evening use can affect sleep. Filters or night mode can reduce brightness and facilitate the evening routine, but they do not replace breaks.
Screens and myopia
The issue is not just the device, but prolonged near work and less time spent outdoors. International guidelines encourage daily outdoor time and regular breaks.
Practical rules
- Apply the 20-20-20 rule.
- Keep the screen at a comfortable distance and slightly below eye level.
- Prefer a larger screen when possible.
- Remind the child to blink.
- Avoid screens in the last hour before sleep.
- Encourage daily outdoor play with sun protection.
When is a check-up needed?
Persistent pain, redness, headache, blurred vision, or difficulty seeing far away require evaluation. "Blue light" glasses do not cure myopia and should not delay examination.
Sources and further information
This article is for informational purposes only and does not replace examination or personalized instructions from an ophthalmologist and optician.
