[Short and long-term results after external Dacryocystorhinostomy by Kaleff-Hollwich's method (author's transl)].

By means of a short and long-term study the recanalising effect of Kaleff-Hollwich's (1977) Dacryocystorhinostomy was determined and compared with Ohm's (1921) and Dupuy-Dutemps (1921) methods. With both procedures a high percentage (75-85) of permanent patency of the tear ducts is obtained. With Kaleff-Hollwich's method a practically continuous mucosa anastomosis can be formed. Stenosis by insufficiency of the canaliculi can be avoided in the opinion of the authors by exact refixing of the medial palpebral ligament. Information in the literature of patency in over 90 percent of cases is revealed after critical evaluation in the great majority of such reports as post-operative ability to rinse the tear ducts in one direction and give no indication of the end result.