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By A.M. Skeffington, OD., from the Introduction to Behavioral Optometry Series. Dr. Skeffington was responsible for the recognition of optometry by the scientific community. He took the contributions of many disciplines and knitted them into a distinctive clinical discipline to greatly expand the profession. He inaugurated much of the advanced thinking and procedures in behavioral optometry. He maintained a close association with authorities in psychology, neurology, physics and education. This book introduces the reader to the basic procedures and analytical examination techniques and includes chapters on the crossed cylinder; the "why" of duction; the exophoria sequence; checking, chaining and typing; lens application, and more. Softbound, 52 pages.