[History of cyclodialysis. In memory of Leopold Heine 1870-1940].

Cyclodialysis, introduced 1905 by Leopold Heine and vehemently debated at first, has later been recognized all over the world, mainly for treating open angle glaucoma and glaucoma in aphacic eyes. Various modifications of the primary surgical technique have been recommended, among them the combination of cyclodialysis with other antiglaucomatous interventions as well as the implantation of tissue-components or foreign material into the cyclodialysis cleft. Apparently, successful cyclodialysis results in both an increased aqueous outflow into the suprachorioidal space and in a reduced aqueous production. Nowadays, cyclodialysis seems to be outdated almost completely by laser-trabeculoplasty and by trabecelectomy. However, cyclodialysis may still be helpful in otherwise uncontrollable glaucomas or may regain a new importance, if microsurgically performed "ab interno."