·AIM:To assess the clinical setting of heavy silicone oil tamponade(Densiron-68)for retinal detachment after silicone oil tamponade.·METHODS:Nine eyes of 9 patients with retinal detachment after silicone oil tamponade were recruited between January 2008 and June 2009.Densiron-68 was used in all cases.Among these cases there were 6 men and 3 women.The youngest was 23 years old,the oldest was 45 years old,the mean age was 33.78±6.89.Among these cases there were 6 cases of perforating injury of eyeball,3 cases of rhegmatogenous detachment of retina.9 cases have secondary proliferative vitreoretinopathy.Surgical techniques included silicone oil removal,membrane peeling,heavy water application,air-fluid exchange,endophotocoagulation,cryocoagulation,Densiron-68 endotamponade et al ·RESULTS:The rate of retinal attachment one week after Densiron-68 endotamponade was 100%.While recurrent retinal detachment appeared in 4 cases during the follow-up time.The earliest re-detachment occurred 1.5 months after the operation,the latest occurred 3 months after the operation.2 cases occurred in eyes with Densiron-68 endotamponade and 2 cases occurred after Densiron-68 removal.Visual acuity was improved in 5 patients by the last follow-up,the improvement rate was 56%;7 cases had increased IOP compared with the preoperation,and could be controled by medicine;the anterior chamber reaction was found in all case.Heavy silicone oil emulsification occurred in all case,the shortest time of emulsification was two weeks,the longest was 3 months,with an average of 2.08±0.58 months.·CONCLUSION:The desirable attitude about heavy silicone oil in complicated retinal detachment is to control indications strictly,observe closely.·