AIM:To determine the prognosis by evaluating the retinal function and hemodynamic changes pre-and postoperation in retinal detachment patients, and investigate the clinical value of the techniques. METHODS: Central retinal arteries（CRA）were studied with color Doppler imaging （CDI）in 62 cases with unilateral rhegmatogenous retinal detachment, the fellow eyes served as control. The measured parameters included peak systolic velocity (Vmax), end diastolic velocity (Vmin) and resistance index(RI).The preoperative and postoperative retinas of retinal detachment were detected with multifocal electroretinogram (mfERG). RESULTS：There were no significant differences between the sick eyes and control eyes in the CDI parameters of CRA preoperatively. RI was significantly elevated (P<0.05), Vmax and Vmin were significantly declined (P<0.05) 2 weeks postoperation. The amplitude of a wave and b wave of mfERG were both significantly elevated in the detached area after retinal detachment operation(P<0.05). Compared with preoperation, the latent period decreased (P<0.05). CONCLUSION: Retinal reattachment and CRA hemodynamics are evaluated with combined mfERG and CDI examination, to avoid impaired reattachment and scleral ischemia after local silicone sponge implant.