We then folded the pericardium 1x1 cm piece onto itself and then placed it over the tube and this was tacked down in all four quadrants to the sclera with #8-0 nylon suture. 
We then folded the pericardium 1x1 cm piece onto itself and then placed it over the tube and this was tacked down in all four quadrants to the sclera with # 8 - 0 nylon suture .