FIELD: medicine.
SUBSTANCE: invention relates to medicine, neurology, can be used for the diagnosis of visual dysfunction in Parkinson's disease prior to medical correction. Perform a study of color evoked visual potentials on the reversible pattern of green and black cells with a pattern cell size of 50 minutes, a stimulation frequency of 1 Hz and a latent period (LP) of 100 ms (P100). Latency of the P100 peak is determined, and when the value of the evoked response is in the form of a P100 peak equal to 110 ms or more, visual dysfunction is diagnosed in Parkinson’s disease without medication correction.
EFFECT: method is simple to perform and has high sensitivity and specificity.
1 cl, 2 dwg, 3 ex, 5 tbl
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