Abstract: ObjectiveTo investigate the changes of ocular hemodynamics after retinal detachment (RD) by color Doppler ultrasonography. MethodsA total of 45 patients (with 45 diseased eyes) who were admitted into our hospital due to primary retinal detachment (RD) and underwent color Doppler ultrasonography were set as an RD group, while their healthy eyes were set as controls. Both groups were compared for the peak systolic velocity (PSV), end diastolic velocity (EDV) and resistance index (RI) of the ocular artery (OA), the retinal central artery (CRA) and the posterior ciliary artery(PCA) blood flow. The association between the changes of blood flow parameters in CRA and PCA and the age, the time and range of RD were analyzed. ResultsCompared with the control group, the RD group showed no significantly different PSV, EDV and RI in OA (P>0.05), but remarkable different PSV, EDV and RI in CRA and PCA (P<0.05).The time of RD was significantly associated with the changes of PSV, EDV and RI in CRA (P<0.05) as well as the changes of PSV and EDV in PCA (P<0.05). The range of RD was associated with the changes of EDV and RI in CRA (P<0.05). The changes of EDV and RI in PCA were correlated to age (P<0.05). ConclusionsRD can reduce the retrobulbar blood flow velocity, increase the blood flow resistance of CRA and PCA. The age, time and range of RD are associated with hemodynamic changes of retrobulbar blood vessels.