Parental astigmatism has independent and dose-dependent association with child astigmatism
Parental astigmatism may confer an independent and dose-dependent association with child astigmatism, according to a study published online Dec. 21 in JAMA Network Open.
Ka Wai Kam, from the Chinese University of Hong Kong, and colleagues examined the association between parental astigmatism and child astigmatism. The analysis included 5,708 familial trios, each comprising a child aged 6 to 8 years and both parents, participating in the Hong Kong Children Eye Study. Parental astigmatism is a factor associated with risk for development of child astigmatism; however, the magnitude of the association has not been determined. A study was conducted to determine the association between parental and child astigmatism.
Cycloplegic autorefraction and autokeratometry were conducted on the children, whereas noncycloplegic autorefraction and autokeratometry were conducted on their parents. The children were categorized into 6 groups on the basis of the severity of astigmatism of both parents. Information on parental education, family income, and children’s outdoor and near work time were obtained by questionnaires.
Reference:
Kam KW, Chee ASH, Zhang Y, et al. Association of Maternal and Paternal Astigmatism With Child Astigmatism in the Hong Kong Children Eye Study. JAMA Netw Open. 2022;5(12):e2247795. doi:10.1001/jamanetworkopen.2022.47795
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