Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,072 questions · 4,237 findings · 447 reviews · Headline outcomes only

No studies found 946 · 22.3%GRADE not reported 257 · 6.1%Very low 1,121 · 26.5%Low 1,207 · 28.5%Moderate 568 · 13.4%High 138 · 3.3%

Early surgery vs late surgery

Complete recovery of facial nerve function at 12 months Defined as: complete recovery HB grade I. · Bell's palsy

It is very uncertain whether early surgery changes complete recovery of facial nerve function at 12 months Defined as:… compared with late surgery (very low certainty).

1 finding from 1 review

Immediate cataract surgery vs delayed cataract surgery

Development of choroidal neovascularization · people with cataract and age‐related macular degeneration

It is very uncertain whether immediate cataract surgery changes development of choroidal neovascularization compared with delayed cataract surgery (very low certainty).

1 finding from 1 review