[On iris reposition in case of extraction of lens (author's transl)].

A description is given of a pair of iris retractors which avoid certain shortcomings of other instruments or of other methods of retracting the iris in connection with cryo-extraction, particularly in case where the pupil cannot be dilated or only insufficiently. This pair of iris retractors has proved useful. In addition, information is given about our own technique to achieve a round functional pupil, after complicated lens-extractions with vitreous prolapse, by peripheral iridotomy parallel to the limbus and discission of the body.