目的观察孔源性视网膜脱离患眼在接受环扎加压术后，眼部血流动力学的改变。方法应用美国惠普ＨＰ８５００彩色多普勒超声诊断仪分别测定３０例患者术前一天及术后三天患眼与对侧眼的眼动脉（ＯＡ）、视网膜中央动脉（ＣＲＡ）、睫状后短动脉（ＳＰＣＡ）的收缩期最大血流速度（Ｖｍａｘ）、舒张末期血流速度（Ｖｍｉｎ）、阻力指数（ＲＩ），以对侧眼为对照组。结果术前患眼的ＯＡ、ＣＲＡ、ＳＰＣＡ的各项血流动力学指标与对侧眼相比无显著性差异（Ｐ＞０．０５）。术后发现患眼的ＣＲＡ与ＳＰＣＡ的Ｖｍａｘ及Ｖｍｉｎ值均显著降低（Ｐ＜０．０５），ＲＩ亦有增高，但无统计学意义。而ＯＡ的各项血流动力学指标较对侧眼无显著性差异（Ｐ＞０．０５）。术后各眼均未发生眼部缺血症状，视力恢复理想。结论环扎加压术后短期内患眼的视网膜与脉络膜血供受一定影响而减少，但这些血流动力学方面的改变在短期内对患眼的恢复无不良作用。彩色多普勒超声是检测眼部血流变化的较理想方法 Objective To observe the changes of ophthalmic hemodynamics in patients with rhegmatogenous retinal detachment undergoing cerclage compression. Methods Hepatic HP8500 color Doppler ultrasonic diagnostic apparatus was used to measure the changes of ophthalmic artery (OA), central retinal artery (CRA), and ciliary body in 30 patients on the day before operation and on the third day after operation, respectively The maximum systolic velocity (Vmax), diastolic velocity (Vmin) and resistance index (RI) of short artery (SPCA) were measured in the contralateral eye as control group. Results There was no significant difference in the hemodynamic parameters of OA, CRA and SPCA before operation between the contralateral eye and the contralateral eye (P> 0.05). The Vmax and Vmin values ​​of CRA and SPCA were significantly decreased (P <0.05) and RI were also increased in postoperative patients, but there was no statistical significance. The hemodynamic parameters of OA compared with the contralateral eye no significant difference (P> 0.05). There were no ocular ischemic symptoms in all the eyes and the vision recovery was satisfactory. Conclusions There is a certain reduction in retinal and choroidal blood supply to the affected eye in a short period of time after cerclage compression. However, these hemodynamic changes have no adverse effect on the recovery of the affected eye in a short period of time. Color Doppler ultrasound is the detection of changes in the blood flow of the eye is a more ideal method