Combined Visco-Trab operation: A dual filtration pathway for management of advanced glaucoma-midterm results.

Purpose: To study midterm efficacy and safety of combined Visco-Trab operation for management of advanced glaucoma.

Methods: 168 eyes of 148 patients with advanced glaucoma had Visco-Trab operation (a merge of both viscocanalostomy and trabeculectomy operations). Mean follow-up was 29.