The purpose of this study was to investigate the association between amblyopia and the self-reported type and amount of physical activity in adolescents aged 12–18 years. The study recruited 26 amblyopes and 26 control subjects: 24 female and 28 males. Ten had strabismic and 16 had anisometropic amblyopia. Mean age was 14.0 ±2.28 years overall. There was no significant difference between groups or for gender. Visual acuity was mean 0.24 ±0.16logMAR for amblyopes and 0.04 ±0.14 for controls, for the worst eye. Glasses were worn by 96.2% of amblyopes and 69.2% of controls. Mean body mass index (BMI) was significantly higher in amblyopes with mean 25.2 ±6.4 (between 90–85th percentile year) vs 21.1 ±5.4 for controls (approximately 75th centile). There was a slightly higher BMI/% for strabismic than anisometropic amblyopia but not significant. Controls had higher physical activity levels than amblyopes at 2404.3 ±2313.0 metabolic equivalent task (MET) activity score vs 905.6 ±1198.0 for amblyopes. Self-reported physical activity levels were similar between groups although amblyopes perceived their physical activity to be of significantly lower importance in their lives vs controls. The authors acknowledge limitations of their study such as small sample size and bias effect with self-reports. They recommend further study with larger numbers and consideration of the impact of refractive error.
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Physical activity levels in adolescents with amblyopia
Reviewed by Fiona Rowe
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Fiona Rowe (Prof)
Institute of Population Health, University of Liverpool, UK.
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