What causes short sightedness in children?
Short sightedness in children results from the eye growing slightly too long for its focusing power, with both inherited tendency and environmental factors contributing.
- Subject
- Children's eyes
- Topic
- Myopia progression
- Kind of question
- What causes…
- Last reviewed
- 22 September 2026
In more detail
The environmental part is the reason the advice for children includes outdoor time, and the reason progression is treated as something that can be influenced rather than simply watched.
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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 Myopia progression . 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.
- 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
- 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