How much outdoor time should children have?
Time outdoors is consistently associated with less development and slower progression of short sightedness in children, and it is one of the few protective factors with a practical recommendation attached.
- Subject
- Children's eyes
- Topic
- Screens & outdoor time
- Kind of question
- How much…
- Last reviewed
- 22 September 2026
In more detail
The mechanism is not fully settled, so the honest framing is that outdoor time is associated with better outcomes rather than proven to cause them. It is also a low-cost suggestion with other benefits, which is why it is made so often.
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Where this answer sits
It is one of 483 answers in the vision and eye health knowledge base, filed under Children's eye health in Screens & outdoor time . The subject page carries the answers either side of it, and the hub is searchable.
This information is for educational purposes and does not replace an examination by a qualified eye-care professional.
General answers cannot tell you what is happening in your own eyes. Only an examination by a qualified ophthalmologist can do that.
Sources & further reading
We prefer primary sources. Where a claim comes from a manufacturer, a single study or a regulator, it is labelled as such below.
- Cochrane Library
Systematic reviews and meta-analyses. Useful for readers who want to know how strong the pooled evidence is, not just what one trial found.
Used for Helping readers judge the strength of the evidence base.
Link checked 22 September 2026
- Eye Health Information
Condition-by-condition eye health information from a US government research institute, written for patients rather than for clinicians.
Used for Plain-language explanations of eye conditions and their symptoms; Healthy vision and screening guidance.
Link checked 23 September 2026