Ocular silicone oil is not removed and over time can lead to silicone oil emulsification and subsequent complications such as cataracts and glaucoma. Intraocular silicone oil injection is usually used as a temporary replacement for vitreous and top pressure on the retina after vitrectomy. In general, after vitrectomy and silicone oil injection for retinal detachment, the silicone oil should be removed at regular intervals after the surgery according to the recovery of the retina, and the silicone oil should be replaced periodically if the retinal detachment is refractory and forms a silicone oil-dependent eye. Silicone oil left in the eye for a long period of time will emulsify, and emulsification can lead to complications such as secondary glaucoma, cataracts, and corneal damage. It is important to go to the hospital for regular checkups after the silicone oil injection procedure, depending on the recovery of the eye and the doctor’s recommendation for further treatment.