Whether vision will get better after silicone oil removal is determined by the best corrected visual acuity before surgery and the recovery of the fundus after surgery. Some severe vitreoretinopathy often requires vitrectomy + silicone oil filling surgery. Silicone oil has a certain viscosity and has surface tension, which can maintain the retina in a flat state and maintain its normal position during surgery. Severe eye trauma can also be maintained by silicone oil to keep the intraocular pressure stable and maintain the appearance of the eyeball. However, silicone oil is a chemical that should not be retained in the eye for long periods of time as it can cause other complications. Silicone oil in the eye is equivalent to a farsighted lens, after removal may also revert to nearsightedness, vision improvement depends on the degree of retinal damage. It is recommended that after the removal of silicone oil, do not overly strenuous exercise, try to lie down, eat less spicy and stimulating food, prohibit smoking and alcohol, usually let the eyes rest more, if any discomfort occurs promptly to the hospital.