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LOUISE G. LOVEKIN, M.D.; MARGARET R. CHANDLER, B.S., M.B.

AMA Arch Ophthalmol. 1959;62(4):588-598.

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

Flicker fusion frequency may be measured in terms of either increasing or decreasing rates at which successive visual stimuli are presented to the subject. In this work, a decreasing rate was used and flicker fusion frequency is defined as the rate at which the subject noted a change from a continuous to an interrupted sensation. It is expressed in cycles per second.

Although flicker fusion was known to be a sensitive method of examining the retina and optic pathways, it was not until 1933 that Phillips¹¹ demonstrated its utility for examination of visual fields of several neurological patients and three normal subjects. His work was carried on and extended by Riddell,¹² working with the same equipment but with modified technique. He tested 15 normal subjects at 16 points in the visual field.

Hylkema^3,4 tested 33 light-adapted normal subjects at four points on the horizontal meridian, reaching 25 . . . [Full Text PDF of this Article]

Author Affiliations
Fairfield, Conn.; London

From the Department of Surgery, Section of Ophthalmology, Grace-New Haven Hospital, Yale University School of Medicine.

Footnotes
Submitted for publication March 4, 1959.

This study was supported by the Connecticut Lions Eye Research Foundation.

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