Refractive errors in children Eye Diseases
Conditions
Interventions
For this field, we ask that you please provide more information about the interventions used in this study? We would like a brief methodology for each of your treatment arms, including the control gr
Sponsors
London School of Hygiene and Tropical Medicine
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Age 11-15 years 2. Presenting visual acuity (i.e. with spectacles if usually worn) of less than 6/9 in both eyes 3. The visual acuity with full correction improves by two or more lines in one or both eyes 4. Parents must consent for their child to take part in the study 5. Assent is obtained from the child
Exclusion criteria
Exclusion criteria: 1. Children with other causes of visual loss 2. Children whose visual acuity does not improve adequately with refraction 3. Children whose parents do not consent 4. Children who do not assent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The proportion of children in each arm of the trial who are wearing their spectacles at unannounced visits 3 to 4 months after they were given their spectacles. The trial has been powered to detect =20% difference in the proportion of children wearing spectacles in the intervention arm compared with the standard arm. Categories 1 or 2 below will be defined as spectacle wearing, and categories 3 or 4 as non-spectacle wearing: 1. Children were wearing their spectacles at the time of the unannounced visit 2. Children were not wearing their spectacles at the time of the visit but have them at school 3. Children were not wearing their spectacles at the time of the visit but said they were at home 4. Children said they no longer had their spectacles as they were broken or lost | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Reasons for non-spectacle wear and for spectacle wear will be done by structured interviews 2. Uptake of referrals: tracking children who have been referred against hospital registers/records 3. Cost analysis: analysis of data on cost of spectacles, producing health education package etc. Measured 3-4 months after visual screening | — |
Countries
India
Outcome results
None listed