Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

114 questions · 114 findings · 9 reviews · Eyes and Vision

No studies found 51 · 44.7%GRADE not reported 5 · 4.4%Very low 18 · 15.8%Low 21 · 18.4%Moderate 18 · 15.8%High 1 · 0.9%