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  Vol. 117 No. 7, July 1999 TABLE OF CONTENTS
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Diplopia Secondary to Aniseikonia Associated With Macular Disease

Nancy M. Benegas, MD; James Egbert, MD; W. Keith Engel, MD; Burton J. Kushner, MD

Arch Ophthalmol. 1999;117:896-899.

Objective  To provide an explanation for diplopia and the inability to fuse in some patients with macular disease.

Methods  We identified 7 patients from our practices who had binocular diplopia concurrent with epiretinal membranes or vitreomacular traction. A review of the medical records of all patients was performed. In addition to complete ophthalmologic and orthoptic examinations, evaluation of aniseikonia using the Awaya New Aniseikonia Tests (Handaya Co Ltd, Tokyo, Japan) was performed on all patients.

Results  All patients were referred for troublesome diplopia. Six of the patients had epiretinal membranes and 1 had vitreomacular traction. All 7 patients had aniseikonia, ranging from 5% to 18%. In 5 of the patients the image in the involved eye was larger, and in the other 2 patients it was smaller than in the fellow eye. All patients had concomitant small-angle strabismus and at least initially did not fuse when the deviation was offset with a prism. Response to optical management and retinal surgery was variable.

Conclusions  Aniseikonia caused by separation or compression of photoreceptors can be a contributing factor to the existence of diplopia and the inability to fuse in patients with macular disease. Concomitant small-angle strabismus and the inability to fuse with prisms may lead the clinician to the incorrect diagnosis of central disruption of fusion. Surgical intervention does not necessarily improve the aniseikonia.


From the Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison (Drs Benegas and Kushner); the Department of Ophthalmology, University of Minnesota, Minneapolis (Drs Egbert and Engel); and the Park Nicollet Clinic, Minneapolis (Dr Engel). The authors have no financial interest in the Awaya New Aniseikona Tests (Handaya Co Ltd, Tokyo, Japan).



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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Management of Binocular Diplopia Due to Maculopathy with Combined Bangerter Filter and Fresnel Prism
Iacobucci et al.
Amer. Orthoptic Jrnl. 2009;59:93-97.
ABSTRACT  

"Was It Something I Said?": Finding Retinal Pathology Without Actually Examining the Retina
Arnoldi and Reynolds
Amer. Orthoptic Jrnl. 2008;58:70-75.
ABSTRACT  

Validity and Repeatability of a New Test for Aniseikonia
Antona et al.
IOVS 2007;48:58-62.
ABSTRACT | FULL TEXT  

Aniseikonia associated with epiretinal membranes
Ugarte and Williamson
Br J Ophthalmol 2005;89:1576-1580.
ABSTRACT | FULL TEXT  





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