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June 26, 1897

A New Classification of the Motor Anomalies of the Eye, based upon physiological principles, together with their symptoms, diagnosis and treatment.

Author Affiliations

By Alexander Duane, M.D., Assistant Surgeon of Ophthalmic and Aural Institute, New York. J. H. Vail & Co. 1897.

JAMA. 1897;XXVIII(26):1250. doi:10.1001/jama.1897.02440260044014

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This excellent little book consists of two parts; the first part reviews the normal movements of the eye, and the tests employed in their examination. The second part introduces the author's new classification of the muscular disorders and gives a very clear and comprehensive description of each of the six groups into which the motor anomalies are classified. Instead of subdividing these anomalies simply according to the deviations presented (which has been the usual plan adopted by writers heretofore) the author proposes the following classification; Disorders of individual muscles. 2. Disorders of associated parallel movements. 3. Disorders of convergence. 4. Disorders of divergence. 5. Disorders of sursumvergence. 6. Disorders of the rotation (or swivel) movements.

These divisions form groups, distinct in nature and symptoms, and frequently requiring widely different methods of treatment and readily distinguishable in practice by the signs they afford. The new classification therefore furnishes a good working

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