Myopia

3 articles published between August 3, 2026 and August 9, 2026.

EXPLAINER

Screens strain your eyes. Whether they damage them is a separate, unsettled question.

Eye strain is close to universal among heavy device users, and it is temporary. The evidence that screen time causes myopia is real but weak, and every study of it measured screen time by questionnaire.

4 min read

WHAT THE STUDY ACTUALLY SAYS

Myopia control: strong evidence for high-dose atropine, weak evidence for low-dose

Cochrane's living review of 104 trials rates high-dose atropine and orthokeratology moderate certainty. The low-dose atropine most widely used sits at very low certainty, and two Western trials disagree.

4 min read

EXPLAINER

Time outdoors delays childhood myopia. The trial evidence is real but narrow.

A cluster-randomised trial in Guangzhou cut three-year myopia incidence by 9.1 percentage points with 40 extra minutes outdoors a day. The eye's underlying growth barely changed.

5 min read

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