Purpose: 1.To study the influence of braine vascular disorders and
Willi's circle functional state on the eye hemo- and hydrodynamics. 2.To
determine the role of the braine blood-flow disorders in development of primary
open-angle glaucoma. Methods: In 154 patients with the above mentioned vascular
disorders the brain and eye hemodinamics was study by mean of
radiocirculography, ultrasound dopplrography of intra- and extracranial
segments of art.carotis, art.vertebralis an the tests of Willi's circle functional state. The
investigations of the eye hydrodynamics and visual functions in the same
patients were performed. Results: The frequency and character of the eye
blood-flow disorders (art.ophthalmica) were found to depend on the lacalization
of the pathology in brain vessels and the of Willi's circle functional state.
In the damage of extracranial vessels a dificiency of the eye blood0flow
develops (group 1, 22 cases). In the damage of intracranial vessels of the
brain the eye blood-flow was increased (group 2, 10 cases) - total 32 patients.
Primary OAG was diagnosed in 25 patients (16.25%) from 154. Among them 8
patients had normal-tension glaucoma. Conclusion: The brain intra- and
extracranial occlusive vascular diseases as well as disorders the Willi's
circle functional state, it means the disorder brain blood-flow autoregulative
mechanisms, are the risc factors of open-angle (normal- and high-tension)
glaucoma development.