Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,079 questions · 2,112 findings · 171 reviews · Eyes and Vision

No studies found 587 · 27.8%GRADE not reported 95 · 4.5%Very low 446 · 21.1%Low 557 · 26.4%Moderate 361 · 17.1%High 66 · 3.1%