Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

9 questions · 9 findings · 2 reviews · Eyes and Vision · Headline outcomes only

No studies found 2 · 22.2%GRADE not reported 0 · 0%Very low 4 · 44.4%Low 2 · 22.2%Moderate 1 · 11.1%High 0 · 0%