Overview
This series follows refractive-error care from detection through assessment, referral, spectacle acquisition, acceptance, sustained wearing, and functional benefit. It shows why schools, outreach, pharmacies, vision centres, health centres, free provision, family and teacher support, and follow-up solve different bottlenecks rather than forming a universal recipe. Randomized evidence reports higher measured wearing odds with free spectacles among children, while a Cochrane evidence map describes delivery models but provides limited effectiveness evidence. The result is a practical way to define endpoints, match claims to measures, and judge effective coverage without overstating what detection or distribution proves.
Learning outcomes
- Detection identifies a need; it does not show that appropriate spectacles were obtained, worn, or sustained.
- Schools, outreach, centres, pharmacies, and hybrid routes solve different access problems; no universal delivery winner is established.
- Free spectacles were associated with higher odds of measured wearing among children in the reviewed randomized evidence; wearing is not guaranteed or equivalent to benefit.
- Program claims should name the endpoint, timing, comparator, and measurement method, especially when inferring sustained use or effective coverage.
Keywords
Preview every chapter · Unlock full text, audio, and video from chapter 4
PlansFAQ
Why doesn't finding refractive error complete care?
Finding refractive error identifies a need, but care also requires assessment, appropriate spectacles, acceptance, wearing, and enough follow-up for benefit to be measured or plausibly pursued.
Which delivery setting is best for refractive-error care?
No setting is universally best: schools, outreach, pharmacies, vision centres, health centres, and combined models fit different geography, population, payment, staffing, and continuity needs, while effectiveness evidence remains limited.
Do free spectacles make children wear glasses?
In the reviewed randomized evidence, free spectacles were associated with higher odds of measured wearing than prescription-only or prescription-plus-letter comparisons, but use was not universal and follow-up and measures varied.
How should a program measure effective coverage?
It should track distinct endpoints—reach, assessment, prescription, acquisition, wearing, sustained use, and functional benefit—with timing and measurement method stated; the reviews provide no unified numerical estimate.