Ultrasound diagnostic criteria of anterior ischemic optic neuropathy and optic neuritis

Purpose : to determine objective echographic criteria for the differential diagnosis of anterior ischemic optic neuropathy (AION) and neuritis (ON). Material methods . The research involved 60 patients aged 40 years, including 30 with suspected AION ON. control group consisted healthy volunteers. In addition standard ophthalmological examination, all underwent ultrasound nerve s examination measurement thickness acoustic density (AD) parenchyma sheets. Assessment blood flow in retrobulbar vessels was carried out modes Color Doppler Imaging pulse dopplerography. Results There were no statistically significant differences average parameters between groups ON there a decrease AD index compared that volunteers (106.02 ± 5.40 y. e., 146.58 9.70 y.e. 135.3 2.1 accordingly). values exceeded 133 this less than 132 e. Evaluation hemodynamic eye demonstrated peak systolic velocity (Vsyst) end-diastolic (Vdiast) central retinal artery medial lateral short posterior ciliary arteries (in 2-fold) normal indices (p < 0.001). addition, intergroup ophthalmic > 0.05). Conclusions velocities (Vsyst Vdiast) can be attributed diagnostic