Refractive Error in Chinese Preschool Children: The Shanghai Study.

Eye Contact Lens · 2019 · PMC6494031 · PMID 30260815

Europe PMC DOI

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a decreasing trendno p-value reported

However, other population-based studies (Baltimore Pediatrics Eye Disease Study 26 and Multi-Ethnic Pediatric Eye Disease Study 27 ) and nonpopulation-based studies (both cross-sectional 32 and longitudinal 11 , 33 , 34 studies) found a decreasing trend with age for astigmatism.

also in 47,180 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.