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June 1944


Author Affiliations

From the Department of Ophthalmology, Northwestern University Medical School.

Arch Ophthalmol. 1944;31(6):453-460. doi:10.1001/archopht.1944.00890060023001

Pendulums, as is well known, have a way of swinging. When an idea has served to explain one condition satisfactorily, the attempt is invariably made to use it for other purposes, and the pendulum is set in motion. The concept of angiospasm is by no means new, but the attempt to explain a number of pathologic ocular conditions as due to that entity is largely an effort of recent years. My own interest in the subject began with a study of Krogh's1 work on the capillaries, originally published in Müller's atlas2 (1922), and some applications of this work to ocular conditions by Scheerer, Parrisius and Mayer-List,3 in the University of Tübingen. Out of this work arose the concept of a vasoneurotic diathesis. When the peripheral circulation was studied by various methods, certain persons were found to have an abnormally labile vasomotor system. In response to various stimuli,

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