Clinical observation of hemodynamic characteristics of ocular vessels in non-arteritic anterior ischemic optic neuropathy / 中华超声影像学杂志

ABSTRACT

Objective To investigate the hemodynamics of ocular vessels of the bilateral eyes in patients with unilateral non-arteritic anterior ischemic optic neuropathy(NAION) . Methods Clinical data of 28 patients with unilateral NAION were collected . The peak systolic velocity ( PSV ) ,end diastolic velocity (EDV) ,resistance index (RI) of ophthalmic artery (OA) ,central retinal artery (CRA) ,nasal short posterior ciliary arteries ( NPCA ) and temporal posterior ciliary arteries ( TPCA ) were comparatively analyzed by color Doppler ultrasonography . Results The hemodynamic parameters of OA in NAION were not significantly different from those in the contralateral eyes ( P ＞ 0 .05 ).PSV of CRA was lower in NAION than that in contralateral eyes ,as well as EDV ( P ＜ 0 .05 ) ,while the RI of CRA was not significantly different between two groups ( P ＞0 .05).PSV of NPCA in NAION was lower than that in the contralateral eyes ( P ＜ 0 .05) ,while EDV and RI of NPCA were not quite different from those in contralateral eyes ( P ＞0 .05).The hemodynamic parameters of TPCA in NAION were not significantly different from those in the contralateral eyes ( P ＞0 .05).Conclusions Color Doppler ultrasonography can non-invasively detect and monitor the hemodynamic changes of ocular vessels in NAION ,which will be of great help in illuminating the pathogenesis of NAION and providing groundbreaking evidence for the diagnosis and prognosis of NAION .