Perfluorodecalin is used for the treatment of 11 eyes with giant retinal tear retinal detachment surgery. Perfluorocarbon liquids can be used as an operative hydrodynamic tool during vitreous surgery. The high specific gravity of perfluorocarbon liquids allows an easy unfolding of the inverted flap and flattening of the retina, displacing the subretinal fluid and stabilizing the retina for membrane peeling. Endophotocoagulation may be performed under optimal visual condition. The success rate was 81.8% (9/11). The retina failed to reattach in patients with advanced proliferative vitreoretinopathy. The surgical techniques were discussed.