A microsurgical method for the injection of intraocular silicone oil is presented. This technique may give good chances for retinal reattachment, especially in severe cases of massive periretinal proliferation (MPP). Although there are a few reports of silicone toxicity we strongly feel that there is a place for intraocular silicone oil as long as vitrectomy techniques fail in getting good and predictable results in MPP. The use of the microscope, a contact lens and an endoilluminator permit a very good visibility of the whole surgical process and we favour this method over the older technique featuring the binocular indirect ophthalmoscope.