98th Annual Meeting DOG 2000

K 50

Implant canalostomy ┬ľ a new non-penetrating glaucoma procedure

A. Kersten, G. Steiner, H. Krey

Background: Hypofiltration due to scaring and hyperfiltration with the clinical occurrence of choroideal detachment and partial loss of vision are common in filtrating glaucoma procedures. We present our first results of a non penetrating Implant Canalostomy.

Methods: In 19 patients with medically uncontrolled open angle glaucoma we performed this procedure. The preoperative intraoculare pressure (IOP) was compared with its postoperative values. A postoperative IOP < 21 mmHg was demanded for success of the procedure. The frequency of conjunctival blebs and complication were noted.

Patients: In median the preoperative IOP could based from 29,8 mmHg to 13,1 mmHg. In 17 of 19 patients the procedure was successful. An additional local antiglaucoma treatment was needed in 6 patients. Only in one eye the operation was not successful. In one case a secondary glaucoma due to a fibrinoid iritis, which occurred directly postoperative in both eyes, could only be cured by temporary acetacolamid dosage and steroids. Six eyes presented a conjuntival bleb. No severe complication were seen.

Discussion: The Implant Canalostomy is an interesting modification of the non penetrating viscocanalostomy described by Stegman. In 89% a normal IOP was measured following the operation. A subconjunctival filtration was seen especially in the first cases due to problems in preparation. Severe complications were not seen.

Augenklinik, Zentralklinikum Augsburg, Stenglingstra├če 2, 86156 Augsburg