Effect of Chinese eye exercises on change in visual acuity and eyeglasses wear among school-aged children in rural China: a propensity-score-matched cohort study.
Chinese children
Eye exercises
Eyeglasses wear
Visual acuity
Journal
BMC complementary medicine and therapies
ISSN: 2662-7671
Titre abrégé: BMC Complement Med Ther
Pays: England
ID NLM: 101761232
Informations de publication
Date de publication:
13 Mar 2020
13 Mar 2020
Historique:
received:
14
06
2019
accepted:
04
03
2020
entrez:
14
3
2020
pubmed:
14
3
2020
medline:
25
9
2020
Statut:
epublish
Résumé
Daily "eye exercises," massaging of periocular acupuncture pressure points, have been part of China's national vision care policy in schools for some 50 years. However, the effect of eye exercises on myopia progression and eyeglasses wear has not been definitively investigated. This study evaluates the effectiveness of eye exercises on visual acuity and the propensity of rural children to wear eyeglasses. Cohort study in 252 randomly-selected rural schools with baseline in September 2012 and follow up surveys 9 and 21 months later. Outcomes were assessed using propensity-score matching (PSM), multivariate linear regression and logistic regression to adjust for differences between children performing and not performing eye exercises. Among 19,934 children randomly selected for screening, 2374 myopic (spherical equivalent refractive error ≤ - 0.5 diopters in either eye) children (11.9%, mean age 10.5 [Standard Error 1.08] years, 48.5% boys) had VA in either eye ≤6/12 without eyeglasses correctable to > 6/12 with eyeglasses. Among these who completed the 21-month follow up, 1217 (58.2%) children reported practicing eye exercises on school days and 874 (41.8%) did not. After propensity-score matching, 1652 (79%) children were matched: 826 (50%) in the Eye Exercises group and 826 (50%) in the No Exercise group. Performing eye exercises was not associated with change in LogMAR uncorrected visual acuity and wear of eyeglasses, using either logistic regression or PSM at 9 or 21 months. We found no evidence for an effect of eye exercises on change in vision or eyeglasses wear. The original trial (Registration site: http://isrctn.org. Registration number: ISRCTN03252665) was retrospectively registered 25/09/2012.
Sections du résumé
BACKGROUND
BACKGROUND
Daily "eye exercises," massaging of periocular acupuncture pressure points, have been part of China's national vision care policy in schools for some 50 years. However, the effect of eye exercises on myopia progression and eyeglasses wear has not been definitively investigated. This study evaluates the effectiveness of eye exercises on visual acuity and the propensity of rural children to wear eyeglasses.
METHODS
METHODS
Cohort study in 252 randomly-selected rural schools with baseline in September 2012 and follow up surveys 9 and 21 months later. Outcomes were assessed using propensity-score matching (PSM), multivariate linear regression and logistic regression to adjust for differences between children performing and not performing eye exercises.
RESULTS
RESULTS
Among 19,934 children randomly selected for screening, 2374 myopic (spherical equivalent refractive error ≤ - 0.5 diopters in either eye) children (11.9%, mean age 10.5 [Standard Error 1.08] years, 48.5% boys) had VA in either eye ≤6/12 without eyeglasses correctable to > 6/12 with eyeglasses. Among these who completed the 21-month follow up, 1217 (58.2%) children reported practicing eye exercises on school days and 874 (41.8%) did not. After propensity-score matching, 1652 (79%) children were matched: 826 (50%) in the Eye Exercises group and 826 (50%) in the No Exercise group. Performing eye exercises was not associated with change in LogMAR uncorrected visual acuity and wear of eyeglasses, using either logistic regression or PSM at 9 or 21 months.
CONCLUSIONS
CONCLUSIONS
We found no evidence for an effect of eye exercises on change in vision or eyeglasses wear.
TRIAL REGISTRATION
BACKGROUND
The original trial (Registration site: http://isrctn.org. Registration number: ISRCTN03252665) was retrospectively registered 25/09/2012.
Identifiants
pubmed: 32164649
doi: 10.1186/s12906-020-2878-9
pii: 10.1186/s12906-020-2878-9
pmc: PMC7076884
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
82Subventions
Organisme : Peking University Health Science Center
ID : BMU20160514
Organisme : National Natural Science Foundation of China
ID : 71803107
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