AIM:To evaluate the effects of panretinal mirror-assisted vitrectomy for removing foreign body from posterior segment.METHODS:We retrospectively analyzed 28 patients 30 eyes with posterior segment foreign bodies from January 2008 to January 2010,performed vitrectomy,removed foreign body under direct vision with panretinal mirror assisted,retinal detachments or breaks were treated with heavy water replacement,intraocular photocoagulation,scleral condensation,silicone oil or C3F8 filling,vancomycin injection for endophthalmitis postoperatively.RESULTS:All of 30 eyes,the foreign body of each eye was extracted for one time;the success rate was 100%(not including intraorbital foreign body).Best-corrected visual acuity increased in 22 eyes(73%);unchanged in 5 eyes(17%);decreased in 3 eyes(10%).Visual acuity >0.02 or finger count/1 meter in 18 eyes(literacy rate of 60%).During the operation,we found 11 eyes with retinal detachment,9 eyes were restorated one time(restoration rate 82%).CONCLUSION:With the assistance of panretinal mirror,vitrectomy for removing foreign body from posterior segment is an effective method,which can provide a wider and clearer vision to increase the improvement rate of visual acuity.