Vision testing in schools: an evaluation of personnel, tests, and premises.

This study compared the results of vision screening of 5 year olds in schools by school nurses and an orthoptist, compared two tests, and examined testing conditions. The specificity of nurse testing was 95% and the sensitivity 83%. No conclusions about the tests could be made owing to the small numbers in this part of the study, but some children, after nearly one year at school, could not match a line of four letters required for the more accurate test. Only 13 of 22 schools had suitable testing conditions.