This pamphlet contains much important information for all those concerned with vision testing and conservation. Its scope is sufficiently broad to justify changing the subtitle to "A Guide for Professional Personnel." It emphasizes the concept of dividing preventive measures into "primary" (those used to prevent injury or loss of vision) and "secondary" (those used to prevent existing visual handicaps from injuring the child's personality). It was a pleasure to find the statement that "Ideally all children should have the benefit of a complete eye examination during the preschool period." It also wisely cautions against the practice of overinstitutionalization of children with visual defects.
Perhaps the virtues of simple Snellen test might be reinforced a little more, and definitions of such terms as oculist, optometrist, and optician might be included.