[Intraoperative floppy iris syndrome versus lens-iris diaphragm retropulsion syndrome]

Intraoperative floppy iris syndrome (IFIS) as well as lens-iris diaphragm retropulsion syndrome (LIDRS) may negatively influence the course of the modern cataract procedure. In case of simultaneous presence of both syndromes, the LIDRS may paradoxically ease the surgery by means of partial or transient elimination of the IFIS. It causes the dilatation of the pupil, pushes the iris back, and deepens the anterior chamber and this way reduces the fluttering of the iris and makes possible to perform important phases of the surgery, during that we are working in the proximity of the pupil. In case of coincidence with the IFIS, after the spontaneous interruption of the LIDRS, we can repeatedly induce it by means of switching the irrigation off and after shallowing of the anterior chamber by turning the irrigation on again.