Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

266 questions · 269 findings · 41 reviews · Eyes and Vision

No studies found 85 · 31.6%GRADE not reported 3 · 1.1%Very low 62 · 23%Low 70 · 26%Moderate 46 · 17.1%High 3 · 1.1%