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The Electroretinogram in Carotid Artery Disease
A. E. KRILL, M.D.;
M. DIAMOND, M.D.;
G. ISER, M.D.
Arch Ophthalmol. 1962;68(1):42-51.
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The value of ophthalmodynamometry as a diagnostic aid in carotid artery disease has been established and so have its limitations.1-6
The use of electroretinography for clinical evaluation of the carotid artery system was suggested by previous studies in animals7,8 and in 1 human subject.9 Granit demonstrated a selective disappearance of the b-wave during carotid compression in cats.7 The b-wave resumed a normal amplitude after release of the compression. Horsten and Winkelman showed a gradual, complete disappearance of the a- and b-wave in cats with carotid clamping for 7 to 15 minutes.8 After release of the clamp, both waves reappeared; however, these were sometimes of smaller amplitude than before clamping, suggesting permanent retinal damage. The greater sensitivity of the b-wave to retinal ischemia was suggested by the faster disappearance and slower reappearance. Kriz found a consistently larger ERG from the right eye
. . . [Full Text PDF of this Article]
Author Affiliations
Chicago
Former NIH Special Trainee at the University of Illinois (Dr. Krill).; From the Department of Ophthalmology, University of Illinois, College of Medicine.
Footnotes
Submitted for publication Dec. 14, 1961.
Supported in part by a Fight for Sight Grant-in-Aid G-226 of the National Council to Combat Blindness, Inc., New York.
Presented in part at the Midwestern Section of the Association for Research in Ophthalmology, April, 1961, Kansas City, Kansas.
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