Abstract THE PHENOMENON of monocular diplopia (or binocular triplopia) which is observed in some patients with concomitant strabismus consists essentially of the simultaneous localization of a single physical stimulus, reaching one eye, in two different subjective visual directions, one normal and one abnormal. As a consequence, patients who display this phenomenon have triplopia when observing with both eyes. Binocular triplopia is rare as a spontaneous occurrence.1 This is not surprising in view of the special conditions required for its appearance. Modern investigations with major amblyoscopes of patients with concomitant strabismus have shown, however, that one can relatively frequently elicit it artificially (Cass2). Indeed, Walraven3 has developed a special orthoptic technique for the treatment of anomalous correspondence which utilizes monocular diplopia as a starting point. The interest in this fascinating phenomenon has, therefore, increased considerably of late; it has been taken out of the realm of purely academic problems, References 1. Bischler, V.: La triplopie binoculaire , Ann. ocul. 181:724-732, 1948 2. Bielschowsky's ( von Graefes Arch. Ophth. 46:143-183, 1898).Crossref 3. Cass, E. E.: Monocular Diplopia Occurring in Cases of Squint , Brit. J. Ophth. 25:565-577 ( (Dec.) ) 1941.Crossref 4. Walraven, F.: ARC Series. Directions for Use of a Monocular Diplopia Technique and Slides for the Treatment of Anomalous Correspondence , Columbus, Ohio, The Wottring Instrument Company, 1950. 5. Kramer, M. E.: Clinical Orthoptics: Diagnosis and Treatment , St. Louis, C. V. Mosby Company, 1949, p. 349. 6. Javal, E.: De quelques phénomènes de diplopie chez certains strabiques , Ann. ocul. 54:123, 1865. 7. Javal, E.: Manuel du strabisme , Paris, G. Masson, 1896, p. 286. 8. Bielschowsky, A.: Über monoculäre Diplopie ohne physikalische Grundlage, nebst Bemerkungen über das Sehen Schielender , von Graefes Arch. Ophth. 46:143-183, 1898.Crossref 9. Burian, H. M.: Sensorial Retinal Relationship in Concomitant Strabismus , Arch. Ophth. 37:504-533 ( (April) ) 1947.Crossref 10. This patient was referred to one of us (N.M.C.) for orthoptic treatment by Dr. Irving Pavlo, of Boston, who has permitted us to publish the case. 11. Burian, H. M.: Scope and Limitations of Orthoptics in the Nonsurgical Treatment of Ocular Deviations , A. M. A. Arch. Ophth. 45:377-381 ( (April) ) 1951.Crossref 12. It should be clearly understood that this chart is a purely schematic presentation, intended to clarify the text. It is not meant to imply that the shift to be discussed actually takes place within the retina or the geniculate body, although this possibility is not excluded, nor should "cortical area" be interpreted as indicating area 17. It is entirely conceivable that the shift actually takes place in area 19. 13. Lorente de Nò, R.: Studies on the Structure of the Cerebral Cortex: II. Continuation of the Study of the Ammonic System , J. Psychol. u. Neurol. 46:113, 1934. 14. Burian, H. M.: Stereopsis, Docum. ophth., to be published.
A.M.A. Archives of Ophthalmology – American Medical Association
Published: Jan 1, 1952
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