VASCULAR PHYSIOLOGY OF THE EYE - PHYSIOLO GICAL PRINCIPLES OF OCULAR CIRCULATION

The author reviews some physiologic aspects of the general, the cerebr al and the ocular circulation. The latter two basically behave in the same manner in that over a wide range of systemic blood pressure they maintain a constant perfusion pressure. Furthermore there are very few substances which really influence their vessel diameter and, most imp ortant, there exist almost no pressure-fluctuations. The author discus ses the differences and similarities of the three vascular systems and draws some conclusions with regard to the treatment of AION and glauc oma.