Article
Estimating heritability and shared environmental effects for refractive error in twin and family studies.
Investigative ophthalmology & visual science - 1 Jan 2009
Lopes Margarida C, Andrew Toby, Carbonaro Francis, Spector Tim D, Hammond Christopher J
Abstract excerpt
PURPOSE: Twin studies have demonstrated a high heritability for refractive error of up to 90%, but some family studies have suggested up to one-third of population variance is attributable to the effects of shared family environment. This large twin study aimed to explore the role of shared environment in refractive error. METHODS: Refractive error was measured using autorefraction in 4602 subjects (1152...
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