Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

85 questions · 86 findings · 9 reviews · Eyes and Vision

No studies found 37 · 43%GRADE not reported 3 · 3.5%Very low 15 · 17.4%Low 18 · 20.9%Moderate 11 · 12.8%High 2 · 2.3%