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EDWARD A. JAEGER, MD; S. DONALD WEEKS; THOMAS D DUANE, MD

Arch Ophthalmol. 1963;70(4):453-455.

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

Introduction

The loss of a direct pupillary reflex to light with retention of the consensual reflex is a classic finding in unilateral blindness. It should follow that identical results would occur when an eye is rendered nonseeing by ophthalmodynamometry. Attempts have been made to establish the validity of this reasoning but were unsuccessful using conventional methods of ophthalmodynamometry.¹

In 1954 it was reported that the pupils continued to react during blackout produced by positive acceleration on the human centrifuge.² Similar conclusions were reported by Howard.³ However, in more carefully controlled experiments utilizing cinematographic recordings, direct observation, and indirect observations via television these earlier findings were refuted.⁴ Thus, it has been established beyond question that during blackout due to positive acceleration the pupillary light reflexes are abolished.

Recently, a transparent plethysmographic goggle has been constructed whereby retinal anoxia and amaurosis can be produced. The pupillary responses during . . . [Full Text PDF of this Article]

Author Affiliations
Philadelphia

From the Department of Ophthalmology, Jefferson Medical College Hospital.

Footnotes
Submitted for publication March 29, 1963.

This investigation was supported by United States Public Health Service grant 04233-02.

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