Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

54 questions · 54 findings · 5 reviews · Eyes and Vision · Headline outcomes only

No studies found 2 · 3.7%GRADE not reported 0 · 0%Very low 17 · 31.5%Low 24 · 44.4%Moderate 11 · 20.4%High 0 · 0%

Single herb plus conventional intervention vs conventional intervention

Visual improvement at end of treatment, as defined by two or more Snellen lines · people with diabetic retinopathy

Single herb plus conventional intervention may leads to higher visual acuity (gain of ≥ 2 lines) (end of treatment) compared with conventional intervention (low certainty).

1 finding from 1 review

Single herb plus conventional intervention vs conventional intervention

Observations in retina: reduction in haemorrhages · people with diabetic retinopathy

It is very uncertain whether single herb plus conventional intervention changes observations in retina: reduction in haemorrhages compared with conventional intervention (very low certainty).

1 finding from 1 review

Botulinum toxin vs surgery

Proportion of participants who achieved binocular single vision at 6 or 12 months · adults and children with strabismus

Botulinum toxin showed no clear difference in proportion of participants who achieved binocular single vision at 6… compared with surgery (low certainty).

1 finding from 1 review

Intervention not reported

Multifocal vs single vision lens spectacles · children with myopia (nearsightedness)
1 finding from 1 review

Intervention not reported

Peripheral plus spectacles vs single vision lens spectacles · children with myopia (nearsightedness)
1 finding from 1 review

Intervention not reported

Bifocal vs single vision soft contact lenses · children with myopia (nearsightedness)
1 finding from 1 review

Intervention not reported

Orthokeratology contact lenses vs single vision lenses · children with myopia (nearsightedness)

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Spherical aberration soft contact lenses vs single vision soft contact lenses · children with myopia (nearsightedness)
1 finding from 1 review

Intervention not reported

3,4‐DAP (20 mg, single dose) versus placebo. Assessments made 30 minutes after taking the drug or placebo · people with acquired nystagmus
1 finding from 1 review

Intervention not reported

4‐AP (10 mg, single dose) versus 3,4‐DAP (10 mg, single dose) Assessments made at 45 and 90 minutes after taking the drug · people with acquired nystagmus
1 finding from 1 review