Figure 2.

Core vitrectomy. Basic “core” vitrectomy may be performed following establishment of an infusion. The proteinaceous nature of the cream produces a vitreous-like appearance. With proper positioning of the endo-illuminating pipe, the wispy vitreous-like substance is visualized (black arrow) and engaged with the cutter (A). Membrane peel. Following adequate vitrectomy, the disposable contact lens is placed onto the cornea to visualize the membrane. End-grasping forceps may then be used to grasp and elevate the membrane taking care not to damage the underlying tissue (B). Fluid-to-air exchange. With the endo-illuminating light pipe and extrusion cannula, fluid to air exchange is performed and assessed. The identification of a subtle reflection (white arrow) at the air–fluid interface indicates that the extrusion cannula is at the meniscus of the fluid (C).