[Evaluation of blood flow velocity and pulsation curve in the posterior ciliary arteries in glaucoma].

One hundred and thirty two examinations (253 eyes) were performed in 78 patients with primary glaucoma, 21-81 years of age. The blood speed and pulsation curve in the posterior ciliary arteries were evaluated by the ultrasonographic pulsating focused Doppler's method with a probe of 8 MHz frequency, connected to the TC-2-64 apparatus of EME production in eyes with a various grade of the optic nerve lesion and by various values of the IOP. It was shown that in eyes with early glaucomatous changes of the optic nerve the correct perfusion in the ciliary circulation is secured in the presence of a rise of the IOP up to 34 mm Hg. Instead in eyes with an advanced optic atrophy a normal perfusion in the ciliary arteries persists only when the IOP is lower than 15 mm Hg.