Silicone oil is usually accepted as a commonly effective method for intraocular tamponade in the repair of retinal detachment caused by giant retinal tears, proliferative retinopathy, trauma, or acute retinal necrosis syndrome, and the injection of which could prolong tamponade than gas . Although considered as a safe agent, many side effects of intraocular silicone oil have been reported in literature including band keratopathy, glaucoma, cataract formation, optic atrophy, and reproliferation of membranes beneath the oil interface. Meanwhile, silicone oil may also migrate to subconjunctival space, anterior chamber, subretinal space, and orbit leading to intraocular complications in some cases . Nevertheless, migration of silicone oil through the optic nerve to the brain is rarely described; the mechanism is still not well understood [3, 4].
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