Figure 1. Fluid currents lead to formation of bubbles over perfluorocarbon liquid (PFCL) (arrow, a); infusion jets may open the retinal break below PFCL (arrowhead, a). Globe rotation leads to PFCL loss (arrow, b), inadequate tamponade (asterisk, b) & lifting of breaks (arrowhead, b). Oil is injected above PFCL (arrow, c); the fluid is removed passively (arrowhead, c). PFCL-oil interface remains parallel to the iris despite globe rotation (asterisk, d) and the break remains flat. The need for continuous infusion is eliminated; the infusion port may be plugged (arrowhead, d). BSS, balanced salt solution.