[Role of neurophysiological mechanisms in pathogenesis of optic nystagmus].
54 children aged 6-14 years with optic nystagmus were examined. They were divided into two groups. Patients of group 1 (n = 26) had isolated nystagmus while 28 patients of group 2 had nystagmus and concomitant ocular pathology. It was found out that visual deterioration was mainly related with the damage of the central part of visual analyzer. This was confirmed by alteration of contrast-frequency characteristics in the range of high frequencies, decline of amplitude and the alpha-rythm nebulosity in combination with high-amplitude fusiform oscillations. These data point to an impaired process in the formation of correlation between cortical areas and cerebral subcortical structures.
Dolzhich
G I
GI
Shcherbakova
E M
EM
D000293:Adolescent; D002648:Child; D004569:Electroencephalography; D006801:Humans; D009759:Nystagmus, Pathologic / Q000503:physiopathology*; D014793:Visual Cortex / Q000503:physiopathology*