Unplugging of prolene IOL loops

From end 1981 until early 1984, 415 Severin-type lenses were implanted in our two centres. In 10 instances i.e. 2.4%. we experienced unplugging of the anterior 12 o'clock positioned loop, apparently a result of the loop being held with the insertions forceps during insertion. The unplugging of the loop possibly affected the visual outcome in one instance.