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目的 探讨原发性开角型青光眼 (POAG)小梁切除术后眼血流动力学改变。方法 用彩色多普勒 (CDI)检测POAG小梁切除术前、后及非手术眼的视网膜中央动脉 (CRA)、眼动脉 (OA)的血流动力学改变情况。结果 术后 2周及 3月CRA平均血流速度 (Vmean)和舒张末期血流速度 (Vmin)比术前增加 ,阻力指数 (RI)下降 ,有显著性差异 ;OA在术后 2周及 3月仅Vmean比术前增加 ,RI下降 ,差异有显著性。非手术眼CRA无显著性改变 ,OA第 2次测量RI下降 ,差异有显著性。结论 小梁切除术能产生持久血流动力学改变
Objective To investigate the ocular hemodynamic changes after primary open angle glaucoma (POAG) trabeculectomy. Methods The hemodynamic changes of central retinal artery (CRA) and ocular artery (OA) before and after POAG trabeculectomy were examined by color Doppler (CDI). Results The Vmean and Vmin of CRA in two weeks and three months after operation were significantly higher than those before operation and the RI were decreased significantly. Month only Vmean increased preoperatively, RI decreased, the difference was significant. Non-operative eye CRA no significant change, OA second measurement of RI decreased, the difference was significant. Conclusion Trabeculectomy can produce long-term hemodynamic changes