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Randomized, controlled trial of an educational intervention to promote spectacle use in rural China: the see well to learn well study.

Abstract：

OBJECTIVE:To test an educational intervention promoting the purchase of spectacles among Chinese children. DESIGN:Randomized, controlled trial. PARTICIPANTS:Children in years 1 and 2 of all 20 junior and senior high schools (ages 12-17 years) in 3 rural townships in Guangdong, China. METHODS:Children underwent visual acuity (VA) testing, and parents of participants with presenting VA worse than 6/12 in either eye improving by more than 2 lines with cycloplegic refraction were recommended to purchase glasses. Children at 10 randomly selected schools received a lecture, video, and classroom demonstration promoting spectacle purchase. MAIN OUTCOME MEASURES:Self-reported purchase of spectacles (primary outcome) and observed wear or possession of newly purchased glasses (secondary outcome) at follow-up examinations (mean, 219 ± 87 days after the baseline visit). RESULTS:Among 15 404 eligible children, examinations were completed for 6379 (74.6%) at intervention schools and 5044 (73.6%) at control schools. Spectacles were recommended for 2236 (35.1%) children at intervention schools and for 2212 (43.9%) at control schools. Of these, 417 (25.7%) intervention schools children and 537 (34.0%, P = 0.45) control schools children reported buying glasses. Predictors of purchase in regression models included female gender (P = 0.02), worse uncorrected VA (P < 0.001), and higher absolute value of refractive error (P = 0.001). Neither the rate of self-reported purchase of glasses or observed wear or possession of newly purchased glasses differed between control schools and intervention schools in mixed-effect logistic regression models. Among children not purchasing glasses, 21.7% had better-eye VA of worse than 6/18. CONCLUSIONS:An intervention based on extensive pilot testing and focus groups in the area failed to promote spectacle purchase or wear. The high burden of remaining uncorrected poor vision underscores the need to develop better interventions. FINANCIAL DISCLOSURE(S):The author(s) have no proprietary or commercial interest in any materials discussed in this article.

journal_name

Ophthalmology

journal_title

Ophthalmology

authors

Congdon N,Li L,Zhang M,Yang A,Gao Y,Griffiths S,Wu J,Sharma A,Lam DS

doi

10.1016/j.ophtha.2011.06.016

subject

Has Abstract

pub_date

2011-12-01 00:00:00

pages

2343-50

issue

eissn

0161-6420

issn

1549-4713

pii

S0161-6420(11)00559-8

journal_volume

118

pub_type

杂志文章,多中心研究,随机对照试验

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Randomized, controlled trial of an educational intervention to promote spectacle use in rural China: the see well to learn well study.