Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

821 questions · 842 findings · 96 reviews

No studies found 275 · 32.7%GRADE not reported 88 · 10.5%Very low 197 · 23.4%Low 187 · 22.2%Moderate 86 · 10.2%High 9 · 1.1%

Lower lingual arch vs No active treatment (control)

Lower molars to mandible (relationship of lower back teeth to the mandible) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Lower lingual arch led to lower lower molars to mandible at 1 year compared with no active treatment (control); GRADE not reported.

1 finding from 1 review

Wavefront procedures vs conventional procedures

Proportion of eyes with uncorrected visual acuity (UCVA) of 20/20 or better post‐treatment. ‐ 12 months · Adults with refractive errors

Wavefront procedures showed no clear difference in proportion of eyes with uncorrected visual acuity (UCVA) of 20/20 or… compared with conventional procedures (low certainty).

1 finding from 1 review

Wavefront‐optimized procedures vs wavefront‐guided procedures

Eyes within ± 0.5 D of target refraction · Adults with refractive errors

Wavefront‐optimized procedures showed no clear difference in proportion of eyes within ± 0.50 diopters (D) of target refraction… compared with wavefront‐guided procedures (low certainty).

1 finding from 1 review

Wavefront‐guided LASIK vs wavefront‐guided PRK

Proportion of eyes with uncorrected visual acuity (UCVA) of 20/20 or better post‐treatment. ‐ 12 months · Adults with refractive errors

It is very uncertain whether wavefront‐guided LASIK changes proportion of eyes with uncorrected visual acuity (UCVA) of 20/20 or… compared with wavefront‐guided PRK (very low certainty).

1 finding from 1 review

Wavefront‐guided LASIK vs wavefront‐guided PRK

Loss of 1 or more lines of BSCVA at 12 months post treatment · Adults with refractive errors

It is very uncertain whether wavefront‐guided LASIK changes proportion of eyes that had lost 1 or more lines of best… compared with wavefront‐guided PRK (very low certainty).

1 finding from 1 review

Wavefront‐guided LASIK vs wavefront‐guided PRK

Eyes within ± 0.5 D of target refraction · Adults with refractive errors

It is very uncertain whether wavefront‐guided LASIK changes proportion of eyes within ± 0.50 diopters (D) of target refraction… compared with wavefront‐guided PRK (very low certainty).

1 finding from 1 review

Wavefront procedures vs conventional procedures

Proportion of eyes that had lost 1 or more lines of best spectacle‐corrected visual acuity (BSCVA) posttreatment:12 months ‐ Procedure PRK · Adults with refractive errors

Wavefront procedures showed no clear difference in proportion of eyes that had lost 1 or more lines of best… compared with conventional procedures (low certainty).

1 finding from 1 review

Wavefront procedures vs conventional procedures

Proportion of eyes that had lost 1 or more lines of best spectacle‐corrected visual acuity (BSCVA) posttreatment‐procedure LASIK; Mean higher‐order aberrations (HOAs) post‐treatment, measured by machine with wavefront sensor; proportion of eyes wi... · Adults with refractive errors

The review found no eligible studies for this question.

1 finding from 1 review

Wavefront‐optimized procedures vs wavefront‐guided procedures

Proportion of eyes with uncorrected visual acuity (UCVA) of 20/20 or better post‐treatment. ‐ 12 months · Adults with refractive errors

Wavefront‐optimized procedures showed no clear difference in proportion of eyes with uncorrected visual acuity (UCVA) of 20/20 or… compared with wavefront‐guided procedures (low certainty).

1 finding from 1 review

Wavefront‐optimized procedures vs wavefront‐guided procedures

Loss of 1 or more lines of BSCVA at 12 months post treatment · Adults with refractive errors

Wavefront‐optimized procedures showed no clear difference in proportion of eyes that had lost 1 or more lines of best… compared with wavefront‐guided procedures (low certainty).

1 finding from 1 review

Intervention not reported

Treatment completion · adults and children with active tuberculosis

It is very uncertain whether the intervention changes treatment completion (very low certainty).

1 finding from 1 review