AIM:To study visual electrophysiological examination,including flash visual evoked potentials(FVEP),flash electroretinogram(FERG),pattern electroretinogram(PERG),to predict the postoperative visual acuity of cataractous patients.METHODS:Visual electrophysiological examination was used to evaluate the visual function after phacoemulsification and intraocular lens implantation in 412 cases 412 eyes.Postoperative best-corrected visual acuity(BCVA) was analyzed the relationship according to FVEP,FERG(or PERG).RESULTS:More obvious linear relationship was shown between the BCVA and the combination of b wave’s amplitude of FERG with wave’s amplitude of FVEP(r=0.492,0.487;P<0.05).CONCLUSION:Visual electrophysiological detection can predict the postoperative visual acuity of cataractous patients.