Özet:

In this study, our purpose is to examine the changes in ocular vascular flow hemodynamics. 20 eyes of 20 patients who had central retinal venous occlusion were evaluated by coloured doppler ultrasonography. Peak systolic velocities (PSV), end diastolic velocities (EDV), pulsation index (PI), resitivity index (RI) in retinal artery, PSV and EDV in ophthalmic artery, maximum velocity (Vmax) in central retinal vein, results of patients with central retinal venous occlusion were compared to the results of control group and to the contralateral eyes of the same patients. Statical analyses were made by paired student t test. 9 patients were female, 11 male and mean age of patients was 59.5±1.0. In central retinal artery; PSV and EDV result of pa-tients were statistically lower than control group and contra-lateral eyes of the same patients (p<0.05), PI and RI of pati-ents were also stastically higher than control group and contralateral eyes of the same patients (p<0.05). In ophthalmic artery, there were no statistically significant difference for PSV and EDV results between study and control groups and also contralateral eyes of the study group (p>0.05). Vmax of central retinal vein were stastically lower than Vmax of control group and contralateral eyes of the study group (p<0.05). For all these results there were no statistically significant difference between contralateral eyes of the study group and control group. By coloured doppler ultrasonography, it is possible to evaluate vascular flow and hemodynamical changes in central retinal venous occlusion.

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