In this study, we examined flow rates and resistivity indices of ophthalmic artery, central retinal artery and posterior silier arteries by color doppler ultrasonography in patients with primary open-angle glaucoma and normal tension glaucoma.
Thirty primary open angle glaucoma cases and 15 normal blood pressure cases were included in the study. The control group consisted of 15 patients. When compared with the control group, a significant decrease in the central retinal artery and posterior silier artery diastolic velocity values and a significant increase in resistivity index values were detected in both glaucoma groups - although not statistically significant a decrease was observed of the peak systolic velocity values were compared to the control group.
There was no statistically significant difference in retrobulber blood flow between the two glaucoma groups.
The result of this study is that retrobulbar blood flow deficit in primary open angle and normal tension glaucoma diseases plays a crucial role in glaucomatous optic nerve damage and color doppler ultrasonography is a suitable noninvasive imaging method in clinical follow-up of such patients.
Key words: Glaucoma;Blood flow; color doppler ultrasonoraphy
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