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February 1959

Afterimages and Ocular Muscle Proprioception

Author Affiliations

South Haven, Mich.
From the Motility Clinic of the Illinois Eye and Ear Infirmary, University of Illinois College of Medicine, Chicago.

AMA Arch Ophthalmol. 1959;61(2):230-232. doi:10.1001/archopht.1959.00940090232006

Adler stated in his textbook of physiology that afterimages arise from photochemical processes in the retina and are of peripheral origin. He stated, "It cannot be denied that central processes may exert inhibitory influences on afterimages, but it seems certain that they do not take their origin in the higher centers."1 He also stated, "It is still being debated how effective proprioceptive impulses, coming from the ocular muscles, are in determining the position of the eyes in the orbit and in relation to one another."2

While experimenting with the movement of afterimages I noticed certain phenomena that could only be explained by the central origin of afterimages and the effectiveness of ocular muscle proprioception. In this paper three experiments will be presented and discussed. The subjects and observers in these experiments were five residents in ophthalmology at the Illinois Eye and Ear Infirmary, and they all reported the

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