Vitreous surgery is performed in an operating room under local or general anesthesia. The vitreous is removed and, therefore, this procedure is called Vitrectomy. Dr. Campbell uses fiberoptic light to illuminate the inside of the eye and other instrument inside the eye, such as forceps, and scissors, to do the surgery. The vitreous is replaced during the operation with either clear fluid that is compatible with the eye, or with gas that completely fills the eye. Over time, the fluid (or gas) is absorbed by the eye and is replaced by the eye’s own fluid; the eye does not replace the vitreous gel itself. The lack of vitreous gel does not affect the functioning of the eye.