[Iridoschisis (author's transl)].

The alterations characteristic for Iridoschisis (type I and II) are discussed in the light of our own observations. Iridoschisis must be differentiated from the essential progressive iris atrophy, from the dysgenesis mesodermalis corneae et iridis (Rieger), the Chandler syndrome and from the genuine polycoria. Because of the genetic inter-relationships between Iridoschisis, essential promalis corneae and iridis, a predisposition for the occurrence of these alterations has to be taken into account.