Feasibility and accuracy of school-led vision screening in primary and secondary school students within the United Kingdom.

One thousand and one children (45.7% female) from eight primary (6-8 years n = 233) and three secondary (11-13 years n = 768) schools participated.

Corresponding values for sensitivity and specificity were 95.8% and 88.1% for primary schoolchildren and 84.3% and 89.2% for secondary schoolchildren.

High negative predictive values in both primary (99.3%) and secondary (97.4%) schools indicate school staff correctly identified most children with distance vision problems.