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February 1941

Die Pathologie der optischen Nachbilder und ihre klinische Verwertung.

Arch Ophthalmol. 1941;25(2):378. doi:10.1001/archopht.1941.00870080202024

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Studies of optical after-images, intensively pursued, have added to knowledge of the physiology and psychology of vision and its associated functions. They were used in testing the field of fixation, by Hering; for determination of the primary position of the visual axes, by Helmholtz ; in research concerned with normal vision, by Wheatstone, Rogers, Wundt and Volkmann, and in ascertaining complementary relations in normal color sensation. From the pathologic standpoint, however, little has been done, and as to pathologic manifestations of after-images themselves practically nothing is known.

With this in mind, the authors have used the material of the neurologic clinic of the University of Belgrade, Yugoslavia, and have examined a large number of patients, about 200 in all. In all but a small minority of cases they found anomalies of the after-images, ranging from tabes, multiple sclerosis, epilepsy, cranial traumatism, tumor and abscess of the brain, cerebral syphilis and chronic

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