ERG und Änderungen des Blutdruckes: Hinweise auf retinale Autoregulation*

ERG and Changes in Systemic Blood Pressure Autoregulation is a homeostatic mechanism responsible for the maintenance of constant blood flow and/or oxygen supply in an organ (Johnson 1964, Papst et al. 1982). The myogenic mechanism (Folkow 1964) plays a role during changes in systemic blood pressure, such as in the experiment reported in this paper. Increases in mean arterial blood pressure (MABP) up to 225 mm Hg and decreases in MABP below 55 mm Hg were induced in anesthe-sized cats (Demant 1982). The b-wave and c-wave amplitudes of the ERG were recorded as indicators of activity of the inner retina and outer re…