THE INFLUENCE OF THE CERVICAL SYMPATHETIC NERVE ON THE LENS OF THE EYE

Abstract

Photographs of the Purkinje-Sanson images reflected from the eye of a rabbit show that the image from the anterior face of the lens changes its position during stimulation of the cervical sympathetic in the direction which would be demanded if such nerve action resulted in a decrease in curvature of the anterior face of the lens. Photographs of the anterior face of the lens in partially iridectomized cats under light ether anesthesia show that the anterior face of the lens does actually flatten during stimulation of the cervical sympathetic nerve.