[Trabeculectomy with laminar resection of the sclera in the treatment of primary open-angle glaucoma].

The authors analyze 204 trabeculectomies, 56 of these combined with resection of the episclera, 48 with the formation of an intrascleral canal, and 100 traditional. Late results of surgery were followed up for 6 months to 4 years. The results evidence that laminar resection of the sclera is an essential point that governs the hypotensive effect of trabeculectomy in primary open-angle glaucoma. Positive effect of resection of the episclera consists in a twofold reduction of the trend to filtration pad cicatrization. If an intrascleral canal is formed, cystic filtration pads develop 1.5 times less frequently than after traditional trabeculectomy.