[The behaviour of plastic catheters within the anterior segment of rabbit's eyes (author's transl)]

The location and tolerance of plastic tubes (2 polyvinyl and 7 silicone respectively) within the anterior segment of the eyes of nine rabbits were observed for periods of 3 to 9 months. In 3 animals the tube was held in place with a single (scleral) suture: the catheter was ultimately totally displaced into the anterior chamber. In the remaining 6 cases a second (corneal) suture was applied. As a result only a limited migration of the silicone catheters was observed. The suprascleral as well as the intracameral portions of the tubes were well tolerated. Even the catheters that had migrated completely into the anterior chamber did not cause any inflammatory reaction.