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September 1957

Paracentral Homonymous Hemianopic Scotoma

Author Affiliations

Washington, D. C.

AMA Arch Ophthalmol. 1957;58(3):452-454. doi:10.1001/archopht.1957.00940010464023

Paracentral homonymous hemianopic scotoma is a rare field defect. Only a small number of cases have been reported. In 1938 Allen and Carmen,1 in reviewing the literature, reported on 15 cases, including 1 of their own. Walsh,2 in his book, devotes two short paragraphs to the subject, citing the cases reported by Allen and Carmen but adding no new cases since that time. Hughes,3 in his book, published in 1954, has illustrations of three cases which he attributes to vascular lesions, and Harrington,4 in his recent book, published in 1956, shows a case due to injury of the occipital lobe.

The symptom complex consists of the following elements:

  1. There is difficulty in reading fixation of objects located close to the central field on the side of the defect. If the defect is to the right, one word, or only part of a word, is seen,

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