The use of two-stage Molteno implants in developmental glaucoma.

Developmental glaucoma, which cannot be controlled by conventional techniques, poses a difficult problem. Twenty-three eyes of 18 patients with developmental glaucoma underwent a two-stage implantation of the double template Molteno valve with follow-up between 12 and 84 months. The final pressure with medication was less than 21 mm Hg in 78% of the cases. These results were obtained in four out of four eyes with primary congenital glaucoma, six out of eight eyes with secondary congenital glaucoma, and eight of 11 eyes in which glaucoma followed surgery for congenital cataract. We feel that two-stage implantation of Molteno valves has a place in the management of difficult developmental glaucomas and is a reasonable early option when glaucoma occurs following surgery for congenital cataract.