Abstract: 【Abstract】 Objective To observe efficacy and complications of  heavy silicone oil (HSO) Densiron68 for traumatic retinal detachment. Design Retrospective compare case series. Participants 40 eyes of 40 patients with traumatic retinal detachment in Beijing Tongren Hospital. Methods The pars plana vitrectomy and retinal detachment surgery were applied to the 40 patients.HSO was applied to 20 patients with retinal detachment arising from inferior or posterior retinal breaks (HSO group). Other 20 patients were applied with standard silicone oil (SSO group). The follow-up time was 12 to 68 weeks. Main Outcome Measures Visual acuity, intraocular pressure, retinal reattachment and complications. Results The retinal reattachment rate in HSO group was 50% (10/20) compared to 55% (11/20) in SSO group (P=0.752). The recurrent rate of superior retinal detachment was 60% (6/10) in HSO group, and 11% (1/9) in SSO group (P=0.057). The recurrent rate of inferior retinal detachment was 10% (1/10) in HSO group, and 67% (6/9) in SSO group (P=0.020). In HSO group, logMAR visual acuity improved from preoperative 2.63±1.00 to postoperative 2.19±0.86 (P=0.037). In SSO group, logMAR visual acuity improved from preoperative 2.27±1.06 to postoperative 1.74±1.04 (P=0.112). Significant increase of intraocular pressure occurred in 30% patients in SSO group while 0% in HSO group (P=0.020). Emulsification rate of silicone oil in SSO group was 75% compared to 100% in HSO group (P=0.047). Conclusion Heavy silicone oil Densiron 68 is applicable to traumatic retinal detachment with inferior or posterior retinal breaks. It is not advised to use heavy silicone oil for long term tamponade because of its higher emulsification rate compared with standard silicone oil. (Ophthalmol CHN, 2012, 21: 252-256)

Key words: heavy silicon oil, retinal detachment , ocular trauma