Intervention not reported
Incidence of type 2 diabetes · individuals without known diabetes mellitus but at high risk for the condition
The review found no eligible studies for this question.
1 finding from 1 review
Intervention not reported
Health‐related quality of life · individuals without known diabetes mellitus but at high risk for the condition
The review found no eligible studies for this question.
1 finding from 1 review
Intervention not reported
Adverse events · individuals without known diabetes mellitus but at high risk for the condition
The review found no eligible studies for this question.
1 finding from 1 review
Intervention not reported
Socioeconomic effects · individuals without known diabetes mellitus but at high risk for the condition
The review found no eligible studies for this question.
1 finding from 1 review
Uncorrected visual acuity deficit due to refractive error · school‐age children and adolescents
The review found no eligible studies for this question.
2 findings from 1 review
no estimate extracted
Studies not reported
No studies found
no estimate extracted
Studies not reported
No studies found
Visual acuity deficit due causes other than refractive error · school‐age children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Spectacle wearing · school‐age children and adolescents
Educational intervention showed no clear difference in spectacle wearing compared with no educational intervention (moderate certainty).
1 finding from 1 review
Quality of life · school‐age children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Costs · school‐age children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse effects · school‐age children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Uncorrected visual acuity deficit due to refractive error · school‐age children and adolescents
2 findings from 1 review
Visual acuity deficit due causes other than refractive error · school‐age children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Spectacle wearing · school‐age children and adolescents
Ready‐made showed no clear difference in spectacle wearing compared with custom‐made spectacles (high certainty).
1 finding from 1 review
Quality of life Measured using the NEI‐RQL‐42. Higher scores are better quality of life. · school‐age children and adolescents
1 finding from 1 review
Costs · school‐age children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse effects · school‐age children and adolescents
1 finding from 1 review
no estimate extracted
Studies not reported
Low
Visual acuity deficit due causes other than refractive error · school‐age children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Spectacle wearing · school‐age children and adolescents
Free spectacles leads to higher spectacle wearing compared with no free spectacles (prescription only) (high certainty).
1 finding from 1 review
Quality of life · school‐age children and adolescents
1 finding from 1 review
Costs · school‐age children and adolescents
1 finding from 1 review
no estimate extracted
2008 participants
Low