Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

120 questions · 120 findings · 56 reviews · Eyes and Vision

No studies found 31 · 25.8%GRADE not reported 8 · 6.7%Very low 33 · 27.5%Low 26 · 21.7%Moderate 17 · 14.2%High 5 · 4.2%