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February 1957

Fixation Patterns in Strabismic Amblyopia

Author Affiliations

Evanston, III.; Iowa City
From the Department of Ophthalmology, College of Medicine, State University of Iowa.

AMA Arch Ophthalmol. 1957;57(2):254-258. doi:10.1001/archopht.1957.00930050264016

Introduction  Investigations into the nature of amblyopia ex anopsia and into the behavior of the amblyopic eye have aroused renewed interest during recent years. In 1952 Brock and Givner,1 and somewhat later Jaffe and Brock,2 reported on a test by means of which they attempted to show that many amblyopic eyes fixated eccentrically. This work has been widely cited, and some rather far-reaching conclusions have been drawn from it (Linksz3). However, to our knowledge no one has troubled actually to repeat this test and to determine its validity or limitations. We have, therefore, undertaken to do this and are presenting our findings in this paper.

Methods and Clinical Material  The test of Brock and Givner applies to patients with amblyopia the well-known fact that an after-image, produced in one eye, can be accurately localized by most subjects when the exposed eye is occluded and the contralateral, unexposed

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