Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

317 questions · 322 findings · 62 reviews · Eyes and Vision

No studies found 94 · 29.2%GRADE not reported 15 · 4.7%Very low 63 · 19.6%Low 91 · 28.3%Moderate 45 · 14%High 14 · 4.3%