An understanding of the fundamental principles of geometrical and physical optics is essential for any student engaged in the study of the visual sciences, but the non-physicist needs a text which clearly explains these notoriously difficult concepts in order to apply them to the practical and clinical aspects of vision. Optics by Freeman and Hull fulfils this requirement admirably. Comprehensive information on optics makes this book the definitive source on the subject. A bright, two-color design enhances the text and aids the reader's understanding. Completely updated and revised to present the latest information in the field. All illustrations are now highlighted with a second color to aid understanding. A new color plate section provides clear, excellent-quality photographs to vividly illustrate important concepts. More information is included on aspheric lenses, with a new chapter on aspheric lenses. Many new questions and exercises reinforce important points and help readers understand the material. The contents have been entirely reorganized for a more logical, easy-to-follow approach. A new glossary defines all key terms from the chapters for convenient reference.