Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

151 questions · 151 findings · 71 reviews · Eyes and Vision

No studies found 91 · 60.3%GRADE not reported 1 · 0.7%Very low 15 · 9.9%Low 13 · 8.6%Moderate 29 · 19.2%High 2 · 1.3%