Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

107 questions · 107 findings · 25 reviews · Eyes and Vision

No studies found 35 · 32.7%GRADE not reported 1 · 0.9%Very low 17 · 15.9%Low 25 · 23.4%Moderate 27 · 25.2%High 2 · 1.9%