Purpose To evaluate the role and the results of primary vitrectomy and lensectomy and silicone oil (SO) tamponade in treating primary rhegmatogenous retinal detachment (RRD) associated with choroidal detachment (CD).
Methods  Retrospective, interventional, noncomparative case series. Twenty one eyes from 21 patients with primary RRD associated with CD treated with primary vitrectomy and lensectomy and SO tamponade were included in this study between January 2010 and November 2011. 
Results  Of 21 patients, 8 were women and 13 men. Age at presentation ranged from 22 to 75 years (mean 57.4 years). The presenting vision ranged from light perception to 20/125. The initial intraocular pressure (IOP) ranged from 3 to 12 mmHg (mean 6.2 mmHg). The causative retinal breaks were maluar holes in 8 of 21(38.1%) eyes, posterior hole beyond the macular area in 3 of 21 (14.3% ) eyes; size of break larger than 2 disc diameters in 8 of 21(38.1%) eyes; Eleven of 21 (52.4%) eyes were high myopia (greater than -6 diopters). Eleven of 21 (52.4%) eyes presented with PVR grades C. All eyes were phakic except one pseudophakic. No intraocular lens was implanted during the primary surgical intervention. Mean follow-up time was 8 months (rang from 4 to 19 Months). Fifteen of 21 (71.4%) eyes had retina reattached after one operation. Six eyes had recurrent inferior retinal detachment due to proliferation. Five of them were successfully reattached after one or more additional operations. Mean IOP at final follow-up was 15.2 mmHg (range from 8 to 20 mmHg). One case declined for further operation. The final reattachment rate was 95.2%. Visual acuity improved in 19 (90.5%) eyes, was unchanged in 1 (4.8%) eyes and decreased in 1 (4.8%) eyes.
Conclusion  Combination of vitrectomy, lensectomy and SO tamponade is an effective method in treating rhegamatogenous RRD associated with CD, reducing the incidence of postoperative hypotony.