NDLI: Pupil constriction and visual evoked potential latency in optic neuritis

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Pupil constriction and visual evoked potential latency in optic neuritis

Content Provider	Scilit
Author	Bos, J. E. Fock, J. M. Reulen, J. P. H. Lith, G. H. M. Van
Copyright Year	1990
Description	Journal: Neuro-Ophthalmology Prolongation of both pupil and visual evoked potential (VEP) latencies was demonstrated in a group of 49 optic neuritis patients. Pupil constriction latency was determined using a technique which allowed simultaneous measurement of the direct and consensual light reflex. Both eyes were stimulated separately. In this way pupillometry allowed a differentiation between efferent and afferent defects, while with the VEP only afferent defects can be demonstrated. Because of the first parallel trajectories of both evocations, afferent pupil and VEP abnormalities were compared; however, no significant correlation was found. This discrepancy was canceled when involving the recovering time after the acute stage of the optic neuritis. It turned out that the pupil latency remained abnormally prolonged after the acute stage, while the VEP latency returned to its baseline value.
Related Links	http://www.tandfonline.com/doi/pdf/10.3109/01658109008997281
Ending Page	196
Page Count	10
Starting Page	187
ISSN	01658107
e-ISSN	1744506X
DOI	10.3109/01658109008997281
Journal	Neuro-Ophthalmology
Issue Number	4
Volume Number	10
Language	English
Publisher	Informa UK Limited
Publisher Date	1990-01-01
Access Restriction	Open
Subject Keyword	Journal: Neuro-Ophthalmology Biological Psychology Constriction
Content Type	Text
Subject	Ophthalmology Neurology (clinical)

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