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  • Title: VEP projections in congenital nystagmus; VEP asymmetry in albinism: a comparison study.
    Author: Apkarian P, Shallo-Hoffmann J.
    Journal: Invest Ophthalmol Vis Sci; 1991 Aug; 32(9):2653-61. PubMed ID: 1651299.
    Abstract:
    Visual evoked potential (VEP) asymmetry in which a preponderance of nasal and temporal retina afferents project to the contralateral hemisphere after full-field monocular stimulation is considered specific to albinism. Some reports, however, suggest that patients with congenital nystagmus (CN) share the albino-like visual pathway anomaly. To examine the clinical specificity of albino misrouting, VEP topography was assessed in ten patients with congenital nystagmus and in ten age-matched albino patients. As an additional control, the VEP response profiles from eight albino patients with no nystagmus were also evaluated. The results are definitive; VEP contralateral asymmetry reflecting temporal retinal misprojection is evinced only in albino patients. Furthermore, ocular-motor instabilities in CN cannot be readily attributed to albino-type misrouted retinal-cortical projections.
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