开角型和闭角型青光眼的血流动力学研究

Study of the ocular blood dynamics in open-angle glaucoma and closure-angle glaucoma

目的:探讨开角型和闭角型青光眼眼部血液动力学的改变。方法:用彩色多普勒显像技术检测3O例正常人和80例青光眼患者的眼动脉,睫状动脉和视网膜中央动脉的血流参数。结果:青光眼病人的血流阻力指数高于正常人,开角型青光眼的舒张期血流速度低于正常人和闭角型青光眼。结论:开角型青光眼患者的眼部血流是低流速高阻力状态;闭角型青光眼患者的血流阻力指数升高,流速正常。

Purpose: To discuss the changes of the ocular blood dynamics in open-angle glaucoma and closure-angle glaucoma. Methods: The blood dynamics of the blood flow of ophthalmic artery (OA), central retinal artery (CRA) and ciliary artery (CA) was measured by color doppler imaging in 30 cases of normal persons and 80 cases of patients with glaucoma. Results: The resistance index (RI) in glaucoma was higher than that of normal subjects, while the end diastolic flow (Vmin)in open-angle glaucoma were lower than those of normal subjects and closure glaucoma. Conclusion: The open-angle glaucoma shows lower velocity of end diastolic flow and higher resistance, and the closure-angle glaucoma shows higher resistance index but the velocity of blood flow were normal.