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School eye health programmes
Uncorrected refractive error is the leading cause of vision impairment in children, and spectacles correct the large majority of it [S9]. School-based screening is one of the most effective and cost-efficient ways to reach children over five years old [S8]. Programmes succeed only when screening is linked to spectacles, referral follow-up and continued spectacle wear [S9] [S12].
Key points - Trained teachers screen vision with pooled sensitivity 76.8% and specificity 93.6% [S11]; involving all class teachers was more accurate and cheaper than using a few selected teachers in a Nepal RCT [S10]. - Referral compliance after school screening is poor (median 43.1%); on-site spectacle provision achieved the highest compliance [S12]. - Smartphone-based screening with sight-simulation cards and SMS reminders raised hospital attendance from 22% to 54% in a Kenyan cluster RCT [S3]. - Ready-made spectacles were non-inferior to custom-made ones for wear at 3 to 4 months in eligible Indian children [S2] and cut cost per child needing spectacles by 58.6% [S6]. - Integrating eye health into an existing school programme performed better than a stand-alone model, but both stopped when funding ended [S7].
Evidence last checked: 2026-10-17 (PubMed abstracts).
Red flags: signs that need urgent action
- In a child: vision not improved by spectacles, which may mean amblyopia, strabismus or other eye disease needing referral [S9].
- In a child: an obvious ocular abnormality found by the teacher [S10].
- In a programme: referral attendance below half of children referred [S3] [S12].
- In a programme: low spectacle wear, recorded in both models in Zanzibar [S7].
- In a programme: dependence on short-term external funding [S7].
Recognise it: who to target
- School-aged children, particularly those over five years old [S8].
- An estimated 13 million children aged 5 to 15 years were visually impaired from uncorrected refractive error [S1].
- Need varies with local prevalence of refractive error, competing conditions and school attendance [S1].
- In India the prevalence of uncorrected refractive error among screened children aged 11 to 15 years was 2.23% [S6].
Confirm it: screening and refraction
- Who screens: trained teachers, where eye-care specialists are too few, provide good-quality and cost-effective screening [S4].
- Threshold: studies using a 6/12 cut-off showed more consistent performance [S11]; the Nepal trial referred children with 6/9 or worse in either eye [S10]; the Kenyan trial referred those with less than 6/12 [S3].
- Age matters: teacher screening sensitivity was 89.29% in younger children but 45.45% in adolescents [S11].
- Tools: Peek Acuity had similar sensitivity to a Snellen Tumbling-E card (77% vs 75%) but lower specificity (91% vs 97.4%) [S3].
- Refraction: studies specifying a cycloplegia protocol in the reference examination reported better screening performance [S11].
- Eligibility for ready-made spectacles in the Indian trial included anisometropia under 1.0 dioptre and acuity with spherical equivalent within 1 line of full correction [S2].
Manage it: running a programme at each resource tier
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Tier A (school and primary care)
- Train all class teachers and repeat training; success depends on solid practical training and teacher motivation [S10] [S11].
- Secure time in the school schedule and the support of principals, staff and parents [S4].
- Address parents' misconceptions, poor literacy and lack of eye health knowledge [S4], including the belief that glasses harm children's eyes [S1].
- Use reminders and simulation cards to push referral attendance [S3].
Tier B (general eye clinic, optometrist or refraction team)
- Provide refraction and spectacles at school where feasible (compliance 51.8% to 96.0%) [S12].
- Otherwise set up a clear referral pathway (25.0% to 65.7%); health education alone was insufficient (21.3% to 24.5%) [S12].
- Use ready-made spectacles for eligible children and custom-made for the rest [S2] [S6].
- Check spectacle wear; more severe refractive error and worse uncorrected acuity predict higher wear, and girls were more likely to wear spectacles in quantitative studies [S5].
Tier C (specialist centre and planners)
- Signpost children with amblyopia, strabismus and other eye disease to treatment [S9].
- Build government-owned, intersectoral programmes with long-term financing, integrated into school health [S7] [S8].
- Standardise protocols and the measurement of spectacle compliance [S5] [S8].
Refer when
| Situation | Urgency |
|---|---|
| Sudden vision loss, painful red eye, eye injury or white pupil in a child | Same-day to an eye service |
| Failed screening (below the programme threshold) | Urgent to a few weeks, for refraction and examination; timing per your local service or specialist advice |
| Vision not improved with spectacles, squint or other abnormality | Urgent to a few weeks, to a paediatric eye service; timing per your local service or specialist advice |
Pitfalls
- Screening without a plan for spectacles and follow-up [S9] [S12].
- Relying on health education alone to drive referral uptake [S12].
- Assuming teacher screening performs as well in adolescents [S11].
- Ignoring spectacle wear after dispensing [S5] [S7].
- Running a vertical programme that ends with donor funding [S7].
Evidence notes
| Source | Date | Design |
|---|---|---|
| [S1] | 2012 | Narrative review |
| [S2] | 2017 | Non-inferiority RCT, 460 children, India |
| [S3] | 2018 | Cluster RCT, 50 schools, Kenya |
| [S4] | 2018 | Systematic review, 48 articles, 13 LMICs |
| [S5] | 2019 | Literature review, 25 studies |
| [S6] | 2021 | Cost-minimisation analysis alongside an RCT |
| [S7] | 2023 | Non-randomised comparative implementation study, Zanzibar |
| [S8] | 2024 | Scoping review, 95 articles, LMICs |
| [S9] | 2025 | Narrative review |
| [S10] | 2025 | Cluster randomised study, 9 schools, Nepal |
| [S11] | 2026 | Diagnostic accuracy meta-analysis, 19 articles |
| [S12] | 2026 | Systematic review, 30 articles, narrative synthesis |
- The Nepal trial randomised only nine schools [S10]; the ready-made spectacle trial followed children for only 3 to 4 months [S2].
- Diagnostic accuracy of teacher screening depends on the rigour of the reference standard and on teacher training [S11].
- Definitions of spectacle compliance varied widely between studies [S5].
- Not covered by these sources: myopia control in schools, screening of preschool children, and near-vision screening.
Related articles
- Refractive error in children and spectacle provision
- Ready-made spectacles and near-vision correction
- Vision screening in children
References
See the numbered source list below. Each marker [S#] links to its PubMed and DOI record.
Sources
- [S1] Sharma A, Congdon N, Patel M, Gilbert C School-based approaches to the correction of refractive error in children. Survey of ophthalmology. (2012). PubMed 22398336 · doi:10.1016/j.survophthal.2011.11.002
- [S2] Morjaria P, Evans J, Murali K, Gilbert C Spectacle Wear Among Children in a School-Based Program for Ready-Made vs Custom-Made Spectacles in India: A Randomized Clinical Trial. JAMA ophthalmology. (2017). PubMed 28426857 · doi:10.1001/jamaophthalmol.2017.0641
- [S3] Rono HK, Bastawrous A, Macleod D, Wanjala E, Di Tanna GL, Weiss HA, et al. Smartphone-based screening for visual impairment in Kenyan school children: a cluster randomised controlled trial. The Lancet. Global health. (2018). PubMed 30012273 · doi:10.1016/s2214-109x(18)30244-4
- [S4] Burnett AM, Yashadhana A, Lee L, Serova N, Brain D, Naidoo K Interventions to improve school-based eye-care services in low- and middle-income countries: a systematic review. Bulletin of the World Health Organization. (2018). PubMed 30455516 · doi:10.2471/blt.18.212332
- [S5] Morjaria P, McCormick I, Gilbert C Compliance and Predictors of Spectacle Wear in Schoolchildren and Reasons for Non-Wear: A Review of the Literature. Ophthalmic epidemiology. (2019). PubMed 31181970 · doi:10.1080/09286586.2019.1628282
- [S6] Minakaran N, Morjaria P, Frick KD, Gilbert C Cost-minimisation Analysis from a Non-inferiority Trial of Ready-Made versus Custom-Made Spectacles for School Children in India. Ophthalmic epidemiology. (2021). PubMed 33256485 · doi:10.1080/09286586.2020.1851728
- [S7] Chan VF, Yard E, Mashayo E, Mulewa D, Drake L, Price-Sanchez C, et al. Does an integrated school eye health delivery model perform better than a vertical model in a real-world setting? A non-randomised interventional comparative implementation study in Zanzibar. The British journal of ophthalmology. (2023). PubMed 36376063 · doi:10.1136/bjo-2022-321752
- [S8] Harvey AA, Morjaria P, Tousignant B Priorities in school eye health in low and middle-income countries a scoping review. Eye (London, England). (2024). PubMed 38565599 · doi:10.1038/s41433-024-03032-1
- [S9] Little JA, Chan VF, Saw SM, Tham YC, Chew L, Foo LL, et al. Current status of school vision screening-rationale, models, impact and challenges: a review. The British journal of ophthalmology. (2025). PubMed 40562460 · doi:10.1136/bjo-2024-326726
- [S10] Awasthi S, Reddy PA, Bassett KL Visual Acuity Screening By by School Teachers in Far West Nepal: A randomized trial of alternate screening models. Kathmandu University medical journal (KUMJ). (2025). PubMed 42023574
- [S11] Cunha M, Nunes AF, Miguel M, Ferreira D, Lanca C Diagnostic Accuracy of Teacher-Administered School Vision Screening: A Systematic Review and Meta-Analysis. Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists). (2026). PubMed 42557529 · doi:10.1007/s44402-026-00145-w
- [S12] Cui J, Zhuo S, Qin Y, Wang J, Chen R, Huang W, et al. Compliance with post-school vision screening referral: a systematic review. BMJ open ophthalmology. (2026). PubMed 42838618 · doi:10.1136/bmjophth-2026-002876