Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

343 questions · 347 findings · 29 reviews · Eyes and Vision

No studies found 94 · 27.1%GRADE not reported 11 · 3.2%Very low 81 · 23.3%Low 110 · 31.7%Moderate 47 · 13.5%High 4 · 1.2%