Prevalence of Heterophoria and Associations with Refractive Error, Heterotropia and Ethnicity in Australian School Children
Aims: To establish the prevalence of heterophoria and its association with refractive error and ethnicity in a population-based study of Australian schoolchildren. Methods: The Sydney Myopia Study is a stratified, random cluster (school-based) sample of 4093 students (examined: 2003e2005). Two samples aged 6 (n=1692) and 12 years (n=2289) without heterotropia were included. Prevalent heterophoria was assessed using cover un-cover and prism bar alternate cover testing at 33 cm and 6 m distance...[Show more]
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|Source:||BJO Online (British Journal of Ophthalmology Online)|
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