The Malyugin ring is an effective pupil-expansion device with minimal risk of intraoperative damage and no need for additional corneal incisions. It exhibits highly predictable behaviour throughout surgery.
Its injector facilitates the non-traumatic introduction and removal of the ring, and its square shape ensures that, once engaged, the pupil remains adequately dilated without being overstretched to a level that causes iris sphincter damage. By maintaining dilation, even in cases of IFIS, the device provides the room needed for a surgeon to complete phacoemulsification and fragment removal.
Despite these advantages, skill, experience and care are still required to use this ring in a manner that ensures iris damage is not caused by incorrect scroll engagement during insertion or disengagement prior to removal of the ring. However, having used this ring for several years without incident, it is clear that the risk of iris damage is minimal if care is always taken and a specific hook is used in conjunction with the injector during insertion and removal.