Testing protocol and recruitment in the genes in myopia twin study

Abstract

Purpose: The genes in myopia twin study were established to assess the relative genetic contribution of spherical equivalent using a classical twin model. This manuscript will provide a detailed outline of the methodological design, twin recruitment, and the prevalence of myopia in the genes in myopia twin study. Methods: All Victorian-based twins registered with the Australian Twin Registry aged 18 years or older were invited to participate genes in myopia twin study. Each subject underwent a general questionnaire, comprehensive eye examination, and a blood sample was collected. Myopia was defined as worse than or equal to -0.50 diopters sphere (in at least one eye). Results: A total of 627..