Abstract: A process of removing flash from a molded silicone intraocular lens includes a step of tumbling (grinding) the lens body in a tumbling media. The tumbling media includes conditioned 0.5 mm diameter glass beads or a mixture of 0.5 mm and 0.3 mm diameter glass beads, alcohol and water. This process applies to single piece and multipiece silicone IOLs.

Abstract: A polymer material in liquid form is continuously extruded through the spinning nozzles of a spinning head to thereby form filaments which drop downwardly through a blowing shaft positioned beneath the spinning nozzles. The filaments are entirely cooled, solidified and recrystallized during passage of the filaments through the blowing shaft. A drawing off roller in the form of a guide roller is located at the lower end of the blowing shaft to draw the filaments laterally from the blowing shaft, over a guide roller, and substantially vertically downwardly from the guide roller to a winding machine whereat the filaments are wound up. The winding machine is preferably located laterally of the blowing shaft, with the guide roller positioned at a level which is higher than the level of the drawing off roller. Thus, the filaments move from the drawing off roller to the guide roller in an upwardly inclined direction.