The Goal of this study was prospective evaluation of the blood flow parameters- maximal systolic velocity (MSV), minimal diastolic velocity (MDV) and Pourcelot’s resistivity index (RI) in patients with swollen optic dis. 63 patients (79 eyes) were examined with swollen optic disc-10 patients (17 eyes) with intracranial hyper- tension, 12 patients (14 eyes) with pseudoedema of disk of the optic nerve, 7 patients (7 eyes) with inflammation swollen optic disc, 3 patients (6 eyes) with pseudotumor cerebri, 8 patients (12 eyes) with arteritic anterior ischemic optic neuropathy (A-AION) and 23 patients (23 eyes) with nonarteritic anterior ischemic optic neuropathy (N-AION). All patients had ophthalmological examinations and Color Doppler ultrasonography in central retinal artery (CRA), posterior ciliary artery (PCA), ophthalmic artery (OA) and in central retinal vein (CRV). The blood flow parameters of the swollen optic disc and normal optic disc were not significant changed at intracranial hypertension, pseudooedema cerebri, inflammation swel- ling, and at pseudotumour od the optic disc. A-AION and N-AION acallocated significant changes of the blood velocities and resistivity index. A-AION: signifi- cant increasing resistivity index at CRA, CPA, significante decrease of MSV and MDV and difficult mapping of the CPA in Color doppler mapping. At the fellow eye (without swollen optic disc) was significante decreasing of the blood velocities of the CRA, CPA, but not so much as at the defective eye with swolen optic nerve disk. N-AION: defective eye with swollen optic disc - there were: nonsignificante decreasing of MSV, MDV, significante decreasing of MSV, MDV and increasing of resistivity index of the CRA, CPA at the fellow eye. AO was without significante changes. Color Doppler information allowed to specify diagnosis of A-AION and N-AION.

        Key words: Color doppler ultrasonography, swollen optic disc, ischemic neuro-