[Trabeculotomy and cataract-extraction: simultaneously or step by step? (author's transl)].

In 64 eyes the combined procedure (group I) and in 67 aphacic eyes a trabeculotomy (group II) was performed. There were different types of glaucoma. Re-examinations wer done 6 months and 1--10 years postoperatively. No definite differences of operative or postoperative complications existed between the two groups. In eyes suffering from primary open angle glaucoma intraocular pressure was controlled in 65--91% in both groups. In group I visual acuity was slightly better. On the other hand in these eyes more often a deterioration of the visual field was observed inspite of i. o. pressure not exceeding 21 mm Hg with a single exception. In group II further glaucoma surgery was necessary in more eyes than in group I.