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September 6, 1952

Principles of Refraction

Author Affiliations

By Sylvester Judd Beach, A.B., M.D., F.A. C.S., Consultant, Staff Maine Eye and Ear Infirmary, Portland, Maine. Cloth. $4. Pp. 158, with 18 illustrations. C. V. Mosby Company, 3207 Washington Blvd., St. Louis 3, 1952.

JAMA. 1952;150(1):62. doi:10.1001/jama.1952.03680010068031

This book gives directions for office procedures for measuring refractive errors. No specific methods of examination are advocated, but several ways of estimating the amount of correction needed to bring about clearer vision and better ocular function are described. The colloquial style of presentation is reminiscent of the lectures given by the author over a number of years to students in medical school and to graduate students and practitioners in instructional courses. Several years of examinations as a member of the American Board of Ophthalmology gave the author an intimate appreciation of the lack of factual knowledge of refraction possessed by the average candidate and undoubtedly influenced him in leaning toward simplicity and brevity in this monograph. There are no mathematical formulas, and there are only 18 simple line cuts to illustrate what can be visualized perfectly from the text by any reader who has had an elementary high school

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