Within 1 month after surgery, it is best to take more than 12 hours of lying down each day; after 1 month, the lying down time can be reduced to 5-10 hours; basically, after 3 months, there is no need to lie down for a long time. Silicone oil implantation refers to the implantation of silicone oil into the vitreous cavity, which is mainly seen in retinal detachment surgery. The main form of retinal detachment surgery is vitrectomy, which is a semi-solid, gel-like substance that fills the vitreous cavity in the eye. If a retinal detachment occurs, vitrectomy is required. The basic function of vitrectomy is to remove the cloudy vitreous, release the vitreous from pulling on the retina, make the refractive interstitium clear and promote retinal repositioning. The main function of the silicone oil is to promote the detachment of the retina, mainly due to the buoyancy of the silicone oil, which has a buoyant effect on the retina, thus promoting the detachment of the retina. After the silicone oil implantation, it is often necessary to adopt the position of lying on the back to further promote the buoyancy of the silicone oil to the retinal adhesion.