From a group of 101 children, eleven (10.9 p. c. ranging in age from 4—12) reported
transient visual disturbances such as blurred vision, grey vision or photopsias immediately
after a light head trauma. As to the origin of these impediments all evidence points
to the occipital areas. Oculopupillary defects or pathological nystagmus phenomena
were in no case associated. The frequency of pathological EEG recordings over the
occipital area was statistically significant (chi-quadrat = 4.27; p ≦ 0.05). The pathogenetic
mechanism may be explained by means of a local oedematous reaction.
