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%

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 within ± 0.50 diopters (D) of target refraction: 12 months ‐ Procedure PRK · Adults with refractive errors

Wavefront procedures showed no clear difference in proportion of eyes within ± 0.50 diopters (D) of target refraction:… 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

Cataract surgery with Hydrus microstent vs cataract surgery alone

Proportion of participants who were medication‐free (not using eye drops) medium‐term · people with cataracts and open angle glaucoma, many of whom had mild or moderate glaucoma, which was well‐controlled with medication

Cataract surgery with Hydrus microstent probably leads to higher proportion of participants who were medication‐free (not using eye… compared with cataract surgery alone (moderate certainty).

1 finding from 1 review