Behavioral effects of children's nearpoint lenses.

Procedures in clinical optometry include the therapeutic and preventive use of lenses for the express purpose of favorably modifying visual behavior in nearpoint activities, especially for children. The research bases for such procedures have been greatly elaborated in recent years. Research evidence now exists to clarify some of the actual effects of lenses upon behavior, indicating possible ways of explaining the underlying mechanisms or processes of such effects, while further suggesting clinical techniques for the appropriate diagnostic determination of nearpoint lens prescriptions.