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In the last two decades the prevalence of myopia in early adolescence has increased, reaching 10-25% in Europe and North America and 60-80% in East Asia. Data from the 1958 British birth cohort have been used to assess the predictive value of uncorrected distance visual acuity (DVA) measured at age 16 years (BJO, published Online First 4 October 2006; 10.1136/bjo.2006.102277). A total of 1867 people had DVA assessed at 16 years and autorefraction at 45 years. As adults 35% of this group were myopic and 24% of these myopic adults had had reduced DVA as teenagers. The sensitivity of reduced teenage DVA for the prediction of adult myopia was 16% overall and 69% for high myopia. The lifetime probability of primary myopia among people with a reduced uncorrected DVA at age 16 was 91%. Measuring uncorrected DVA in adolescence is not a useful way of identifying the majority of people who will be myopic as adults but it does identify refractive error (myopia or hypermetropia) present at the time of testing.
Annual influenza vaccination of children in school may protect household members, both children and adults. In the autumn of 2004 in four US states children aged 5-14 years in 11 schools were offered intranasal live attenuated influenza vaccine and children in 17 schools …