[Glaucoma drainage implants in the treatment of refractory glaucoma].

The authors describe their experience with the first three glaucoma drainage implants. All patients had previously several antiglaucomatous operations and a greatly reduced vision. The intraocular pressure was resistant to conservative treatment. In all patients the authors recorded postoperative complications reported in the literature. Glaucoma drainage implants extend possibilities in patients with refractory glaucoma.