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ELWIN MARG, Ph.D.; MEREDITH W. MORGAN, Jr., Ph.D.

Arch Ophthal. 1950;43(5):871-878.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

IN 1936 Schubert and Burian¹ published their discovery of the pupillary fusion reflex (Fusionreaktion), which was defined as a dilatation of the pupil with a disruption of fusion and, conversely, a constriction of the pupil with its resumption. This reflex was stated to be not evanescent but lasting. Since that time no further report has been published on the subject.

During an investigation of the pupillary near reflex² the question that the fusion reflex may be an artefact arose. In finding the relationship of pupillary diameter to accommodation and the various components of convergence, as originally divided by Maddox³ and quantified by others,⁴ we determined that the pupillary near reflex is essentially elicited by accommodation. Fusional convergence plays a minor role in some subjects but none at all in others. A psychic proximal factor in the pupillary near reflex was indicated, but it is of no . . . [Full Text PDF of this Article]

Author Affiliations
BERKELEY, CALIF.

From the School of Optometry, University of California.

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