Implementing and evaluating a school-based program to improve childhood vision.

Background: Approximately 20% of the American schoolchildren have a vision problem. Children from low-income urban areas have been shown to have more than twice the normal rate of vision problems. This study evaluated the effectiveness of A Vision for Success, a school-based program designed to provide eyeglasses to children in a timely manner in selected New York City public elementary schools and to encourage their regular use at school.