Glasses give kids a brighter future: study tests impact on learning and mental health
NCT ID NCT06065631
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study gave free eyeglasses to over 1,800 students aged 9-20 in Sierra Leone who had trouble seeing. Researchers wanted to find out if wearing glasses would improve their math and reading skills, and also help with anxiety and social well-being. The study was planned to last one school year, but was ended early.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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1,821 people
The number who actually took part.
- Started
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Oct 2023
- Finished
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Jan 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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9 to 20 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Presenting (with or without glasses) distance visual acuity of 6/12 or worse in the better-seeing eye; 2. Refractive error of at least 0.75 diopters (D) of myopia, 2.00 D of hyperopia or 1.00 D of astigmatism; 3. Visual acuity is correctable to 6/7.5 or better with eyeglasses. Exclusion Criteria: 1\. Other ocular problems preventing visual acuity \> 6/12 in both eyes.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Innovations for Poverty Action (IPA)
Freetown, Sierra Leone
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Ear seeds and smart glasses: a new hope to halt childhood myopia?