ArticleOphthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)2026
Body Mass Index is Associated With Direction-Specific Increases in With-the-Rule Corneal and Refractive Astigmatism in Schoolchildren.
Article in Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeExamine the association between body mass index (BMI) and astigmatism directionality using vector analysis of refractive and corneal components (J
methodsThis cross-sectional study recruited 1626 schoolchildren aged 6-7 (n = 728) and 12-13 years (n = 898) from 37 randomly selected schools in Ireland. Cycloplegic autorefraction and ocular biometry were obtained. Height and weight were measured and BMI calculated and analysed as a continuous predictor, with WHO-defined BMI categories used for secondary severity modelling. Refractive and corneal astigmatism were decomposed into vector components (J
resultsHigher BMI was associated with a positive shift in refractive J
conclusionsHigher BMI was independently associated with increased J
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