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  • Title: [Retinal diseases as a cause of increased latency in the visual evoked cortical potential].
    Author: Lorenz R, Heider W.
    Journal: Klin Monbl Augenheilkd; 1990 Jan; 196(1):17-20. PubMed ID: 2313987.
    Abstract:
    Retinal and cortical potentials to reversing checkerboard stimuli (P-ERG, P-VECP) were recorded simultaneously in ten patients with disease of the central retina and eleven patients with tumor-related optic nerve changes. While both groups exhibited comparable P100 delays in the P-VECP, delays of the q component in the P-ERG were only observed in the group with retinal disease. Thus, measurement of P-ERG and P-VECP latencies enables retinal to be distinguished from post-retinal disease in cases with visual disturbances where there are no obvious fundus changes.
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